---
_id: '7717'
abstract:
- lang: eng
text: "Background: DNA methylation levels change along with age, but few studies
have examined the variation in the rate of such changes between individuals.\r\nMethods:
We performed a longitudinal analysis to quantify the variation in the rate of
change of DNA methylation between individuals using whole blood DNA methylation
array profiles collected at 2–4 time points (N = 2894) in 954 individuals (67–90
years).\r\nResults: After stringent quality control, we identified 1507 DNA methylation
CpG sites (rsCpGs) with statistically significant variation in the rate of change
(random slope) of DNA methylation among individuals in a mixed linear model analysis.
Genes in the vicinity of these rsCpGs were found to be enriched in Homeobox transcription
factors and the Wnt signalling pathway, both of which are related to ageing processes.
Furthermore, we investigated the SNP effect on the random slope. We found that
4 out of 1507 rsCpGs had one significant (P < 5 × 10−8/1507) SNP effect and 343
rsCpGs had at least one SNP effect (436 SNP-probe pairs) reaching genome-wide
significance (P < 5 × 10−8). Ninety-five percent of the significant (P < 5 × 10−8)
SNPs are on different chromosomes from their corresponding probes.\r\nConclusions:
We identified CpG sites that have variability in the rate of change of DNA methylation
between individuals, and our results suggest a genetic basis of this variation.
Genes around these CpG sites have been reported to be involved in the ageing process."
article_number: '75'
article_processing_charge: No
article_type: original
author:
- first_name: Qian
full_name: Zhang, Qian
last_name: Zhang
- first_name: Riccardo E
full_name: Marioni, Riccardo E
last_name: Marioni
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Jon
full_name: Higham, Jon
last_name: Higham
- first_name: Duncan
full_name: Sproul, Duncan
last_name: Sproul
- first_name: Naomi R
full_name: Wray, Naomi R
last_name: Wray
- first_name: Ian J
full_name: Deary, Ian J
last_name: Deary
- first_name: Allan F
full_name: McRae, Allan F
last_name: McRae
- first_name: Peter M
full_name: Visscher, Peter M
last_name: Visscher
citation:
ama: Zhang Q, Marioni RE, Robinson MR, et al. Genotype effects contribute to variation
in longitudinal methylome patterns in older people. Genome Medicine. 2018;10(1).
doi:10.1186/s13073-018-0585-7
apa: Zhang, Q., Marioni, R. E., Robinson, M. R., Higham, J., Sproul, D., Wray, N.
R., … Visscher, P. M. (2018). Genotype effects contribute to variation in longitudinal
methylome patterns in older people. Genome Medicine. Springer Nature. https://doi.org/10.1186/s13073-018-0585-7
chicago: Zhang, Qian, Riccardo E Marioni, Matthew Richard Robinson, Jon Higham,
Duncan Sproul, Naomi R Wray, Ian J Deary, Allan F McRae, and Peter M Visscher.
“Genotype Effects Contribute to Variation in Longitudinal Methylome Patterns in
Older People.” Genome Medicine. Springer Nature, 2018. https://doi.org/10.1186/s13073-018-0585-7.
ieee: Q. Zhang et al., “Genotype effects contribute to variation in longitudinal
methylome patterns in older people,” Genome Medicine, vol. 10, no. 1. Springer
Nature, 2018.
ista: Zhang Q, Marioni RE, Robinson MR, Higham J, Sproul D, Wray NR, Deary IJ, McRae
AF, Visscher PM. 2018. Genotype effects contribute to variation in longitudinal
methylome patterns in older people. Genome Medicine. 10(1), 75.
mla: Zhang, Qian, et al. “Genotype Effects Contribute to Variation in Longitudinal
Methylome Patterns in Older People.” Genome Medicine, vol. 10, no. 1, 75,
Springer Nature, 2018, doi:10.1186/s13073-018-0585-7.
short: Q. Zhang, R.E. Marioni, M.R. Robinson, J. Higham, D. Sproul, N.R. Wray, I.J.
Deary, A.F. McRae, P.M. Visscher, Genome Medicine 10 (2018).
date_created: 2020-04-30T10:42:50Z
date_published: 2018-10-22T00:00:00Z
date_updated: 2021-01-12T08:15:04Z
day: '22'
doi: 10.1186/s13073-018-0585-7
extern: '1'
intvolume: ' 10'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1186/s13073-018-0585-7
month: '10'
oa: 1
oa_version: Published Version
publication: Genome Medicine
publication_identifier:
issn:
- 1756-994X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Genotype effects contribute to variation in longitudinal methylome patterns
in older people
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2018'
...
---
_id: '7718'
abstract:
- lang: eng
text: Flores Island, Indonesia, was inhabited by the small-bodied hominin species
Homo floresiensis, which has an unknown evolutionary relationship to modern humans.
This island is also home to an extant human pygmy population. Here we describe
genome-scale single-nucleotide polymorphism data and whole-genome sequences from
a contemporary human pygmy population living on Flores near the cave where H.
floresiensis was found. The genomes of Flores pygmies reveal a complex history
of admixture with Denisovans and Neanderthals but no evidence for gene flow with
other archaic hominins. Modern individuals bear the signatures of recent positive
selection encompassing the FADS (fatty acid desaturase) gene cluster, likely related
to diet, and polygenic selection acting on standing variation that contributed
to their short-stature phenotype. Thus, multiple independent instances of hominin
insular dwarfism occurred on Flores.
article_processing_charge: No
article_type: original
author:
- first_name: Serena
full_name: Tucci, Serena
last_name: Tucci
- first_name: Samuel H.
full_name: Vohr, Samuel H.
last_name: Vohr
- first_name: Rajiv C.
full_name: McCoy, Rajiv C.
last_name: McCoy
- first_name: Benjamin
full_name: Vernot, Benjamin
last_name: Vernot
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Chiara
full_name: Barbieri, Chiara
last_name: Barbieri
- first_name: Brad J.
full_name: Nelson, Brad J.
last_name: Nelson
- first_name: Wenqing
full_name: Fu, Wenqing
last_name: Fu
- first_name: Gludhug A.
full_name: Purnomo, Gludhug A.
last_name: Purnomo
- first_name: Herawati
full_name: Sudoyo, Herawati
last_name: Sudoyo
- first_name: Evan E.
full_name: Eichler, Evan E.
last_name: Eichler
- first_name: Guido
full_name: Barbujani, Guido
last_name: Barbujani
- first_name: Peter M.
full_name: Visscher, Peter M.
last_name: Visscher
- first_name: Joshua M.
full_name: Akey, Joshua M.
last_name: Akey
- first_name: Richard E.
full_name: Green, Richard E.
last_name: Green
citation:
ama: Tucci S, Vohr SH, McCoy RC, et al. Evolutionary history and adaptation of a
human pygmy population of Flores Island, Indonesia. Science. 2018;361(6401):511-516.
doi:10.1126/science.aar8486
apa: Tucci, S., Vohr, S. H., McCoy, R. C., Vernot, B., Robinson, M. R., Barbieri,
C., … Green, R. E. (2018). Evolutionary history and adaptation of a human pygmy
population of Flores Island, Indonesia. Science. American Association for
the Advancement of Science. https://doi.org/10.1126/science.aar8486
chicago: Tucci, Serena, Samuel H. Vohr, Rajiv C. McCoy, Benjamin Vernot, Matthew
Richard Robinson, Chiara Barbieri, Brad J. Nelson, et al. “Evolutionary History
and Adaptation of a Human Pygmy Population of Flores Island, Indonesia.” Science.
American Association for the Advancement of Science, 2018. https://doi.org/10.1126/science.aar8486.
ieee: S. Tucci et al., “Evolutionary history and adaptation of a human pygmy
population of Flores Island, Indonesia,” Science, vol. 361, no. 6401. American
Association for the Advancement of Science, pp. 511–516, 2018.
ista: Tucci S, Vohr SH, McCoy RC, Vernot B, Robinson MR, Barbieri C, Nelson BJ,
Fu W, Purnomo GA, Sudoyo H, Eichler EE, Barbujani G, Visscher PM, Akey JM, Green
RE. 2018. Evolutionary history and adaptation of a human pygmy population of Flores
Island, Indonesia. Science. 361(6401), 511–516.
mla: Tucci, Serena, et al. “Evolutionary History and Adaptation of a Human Pygmy
Population of Flores Island, Indonesia.” Science, vol. 361, no. 6401, American
Association for the Advancement of Science, 2018, pp. 511–16, doi:10.1126/science.aar8486.
short: S. Tucci, S.H. Vohr, R.C. McCoy, B. Vernot, M.R. Robinson, C. Barbieri, B.J.
Nelson, W. Fu, G.A. Purnomo, H. Sudoyo, E.E. Eichler, G. Barbujani, P.M. Visscher,
J.M. Akey, R.E. Green, Science 361 (2018) 511–516.
date_created: 2020-04-30T10:43:24Z
date_published: 2018-08-03T00:00:00Z
date_updated: 2021-01-12T08:15:04Z
day: '03'
doi: 10.1126/science.aar8486
extern: '1'
external_id:
pmid:
- '30072539'
intvolume: ' 361'
issue: '6401'
language:
- iso: eng
month: '08'
oa_version: None
page: 511-516
pmid: 1
publication: Science
publication_identifier:
issn:
- 0036-8075
- 1095-9203
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
status: public
title: Evolutionary history and adaptation of a human pygmy population of Flores Island,
Indonesia
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 361
year: '2018'
...
---
_id: '7721'
abstract:
- lang: eng
text: 'The availability of genome-wide genetic data on hundreds of thousands of
people has led to an equally rapid growth in methodologies available to analyse
these data. While the motivation for undertaking genome-wide association studies
(GWAS) is identification of genetic markers associated with complex traits, once
generated these data can be used for many other analyses. GWAS have demonstrated
that complex traits exhibit a highly polygenic genetic architecture, often with
shared genetic risk factors across traits. New methods to analyse data from GWAS
are increasingly being used to address a diverse set of questions about the aetiology
of complex traits and diseases, including psychiatric disorders. Here, we give
an overview of some of these methods and present examples of how they have contributed
to our understanding of psychiatric disorders. We consider: (i) estimation of
the extent of genetic influence on traits, (ii) uncovering of shared genetic control
between traits, (iii) predictions of genetic risk for individuals, (iv) uncovering
of causal relationships between traits, (v) identifying causal single-nucleotide
polymorphisms and genes or (vi) the detection of genetic heterogeneity. This classification
helps organise the large number of recently developed methods, although some could
be placed in more than one category. While some methods require GWAS data on individual
people, others simply use GWAS summary statistics data, allowing novel well-powered
analyses to be conducted at a low computational burden.'
article_processing_charge: No
article_type: original
author:
- first_name: R. M.
full_name: Maier, R. M.
last_name: Maier
- first_name: P. M.
full_name: Visscher, P. M.
last_name: Visscher
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: N. R.
full_name: Wray, N. R.
last_name: Wray
citation:
ama: 'Maier RM, Visscher PM, Robinson MR, Wray NR. Embracing polygenicity: A review
of methods and tools for psychiatric genetics research. Psychological Medicine.
2018;48(7):1055-1067. doi:10.1017/s0033291717002318'
apa: 'Maier, R. M., Visscher, P. M., Robinson, M. R., & Wray, N. R. (2018).
Embracing polygenicity: A review of methods and tools for psychiatric genetics
research. Psychological Medicine. Cambridge University Press. https://doi.org/10.1017/s0033291717002318'
chicago: 'Maier, R. M., P. M. Visscher, Matthew Richard Robinson, and N. R. Wray.
“Embracing Polygenicity: A Review of Methods and Tools for Psychiatric Genetics
Research.” Psychological Medicine. Cambridge University Press, 2018. https://doi.org/10.1017/s0033291717002318.'
ieee: 'R. M. Maier, P. M. Visscher, M. R. Robinson, and N. R. Wray, “Embracing polygenicity:
A review of methods and tools for psychiatric genetics research,” Psychological
Medicine, vol. 48, no. 7. Cambridge University Press, pp. 1055–1067, 2018.'
ista: 'Maier RM, Visscher PM, Robinson MR, Wray NR. 2018. Embracing polygenicity:
A review of methods and tools for psychiatric genetics research. Psychological
Medicine. 48(7), 1055–1067.'
mla: 'Maier, R. M., et al. “Embracing Polygenicity: A Review of Methods and Tools
for Psychiatric Genetics Research.” Psychological Medicine, vol. 48, no.
7, Cambridge University Press, 2018, pp. 1055–67, doi:10.1017/s0033291717002318.'
short: R.M. Maier, P.M. Visscher, M.R. Robinson, N.R. Wray, Psychological Medicine
48 (2018) 1055–1067.
date_created: 2020-04-30T10:44:35Z
date_published: 2018-05-01T00:00:00Z
date_updated: 2021-01-12T08:15:05Z
day: '01'
doi: 10.1017/s0033291717002318
extern: '1'
intvolume: ' 48'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/s0033291717002318
month: '05'
oa: 1
oa_version: Published Version
page: 1055-1067
publication: Psychological Medicine
publication_identifier:
issn:
- 0033-2917
- 1469-8978
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
status: public
title: 'Embracing polygenicity: A review of methods and tools for psychiatric genetics
research'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 48
year: '2018'
...
---
_id: '7722'
abstract:
- lang: eng
text: We develop a Bayesian mixed linear model that simultaneously estimates single-nucleotide
polymorphism (SNP)-based heritability, polygenicity (proportion of SNPs with nonzero
effects), and the relationship between SNP effect size and minor allele frequency
for complex traits in conventionally unrelated individuals using genome-wide SNP
data. We apply the method to 28 complex traits in the UK Biobank data (N = 126,752)
and show that on average, 6% of SNPs have nonzero effects, which in total explain
22% of phenotypic variance. We detect significant (P < 0.05/28) signatures of
natural selection in the genetic architecture of 23 traits, including reproductive,
cardiovascular, and anthropometric traits, as well as educational attainment.
The significant estimates of the relationship between effect size and minor allele
frequency in complex traits are consistent with a model of negative (or purifying)
selection, as confirmed by forward simulation. We conclude that negative selection
acts pervasively on the genetic variants associated with human complex traits.
article_processing_charge: No
article_type: original
author:
- first_name: Jian
full_name: Zeng, Jian
last_name: Zeng
- first_name: Ronald
full_name: de Vlaming, Ronald
last_name: de Vlaming
- first_name: Yang
full_name: Wu, Yang
last_name: Wu
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Luke R.
full_name: Lloyd-Jones, Luke R.
last_name: Lloyd-Jones
- first_name: Loic
full_name: Yengo, Loic
last_name: Yengo
- first_name: Chloe X.
full_name: Yap, Chloe X.
last_name: Yap
- first_name: Angli
full_name: Xue, Angli
last_name: Xue
- first_name: Julia
full_name: Sidorenko, Julia
last_name: Sidorenko
- first_name: Allan F.
full_name: McRae, Allan F.
last_name: McRae
- first_name: Joseph E.
full_name: Powell, Joseph E.
last_name: Powell
- first_name: Grant W.
full_name: Montgomery, Grant W.
last_name: Montgomery
- first_name: Andres
full_name: Metspalu, Andres
last_name: Metspalu
- first_name: Tonu
full_name: Esko, Tonu
last_name: Esko
- first_name: Greg
full_name: Gibson, Greg
last_name: Gibson
- first_name: Naomi R.
full_name: Wray, Naomi R.
last_name: Wray
- first_name: Peter M.
full_name: Visscher, Peter M.
last_name: Visscher
- first_name: Jian
full_name: Yang, Jian
last_name: Yang
citation:
ama: Zeng J, de Vlaming R, Wu Y, et al. Signatures of negative selection in the
genetic architecture of human complex traits. Nature Genetics. 2018;50(5):746-753.
doi:10.1038/s41588-018-0101-4
apa: Zeng, J., de Vlaming, R., Wu, Y., Robinson, M. R., Lloyd-Jones, L. R., Yengo,
L., … Yang, J. (2018). Signatures of negative selection in the genetic architecture
of human complex traits. Nature Genetics. Springer Nature. https://doi.org/10.1038/s41588-018-0101-4
chicago: Zeng, Jian, Ronald de Vlaming, Yang Wu, Matthew Richard Robinson, Luke
R. Lloyd-Jones, Loic Yengo, Chloe X. Yap, et al. “Signatures of Negative Selection
in the Genetic Architecture of Human Complex Traits.” Nature Genetics.
Springer Nature, 2018. https://doi.org/10.1038/s41588-018-0101-4.
ieee: J. Zeng et al., “Signatures of negative selection in the genetic architecture
of human complex traits,” Nature Genetics, vol. 50, no. 5. Springer Nature,
pp. 746–753, 2018.
ista: Zeng J, de Vlaming R, Wu Y, Robinson MR, Lloyd-Jones LR, Yengo L, Yap CX,
Xue A, Sidorenko J, McRae AF, Powell JE, Montgomery GW, Metspalu A, Esko T, Gibson
G, Wray NR, Visscher PM, Yang J. 2018. Signatures of negative selection in the
genetic architecture of human complex traits. Nature Genetics. 50(5), 746–753.
mla: Zeng, Jian, et al. “Signatures of Negative Selection in the Genetic Architecture
of Human Complex Traits.” Nature Genetics, vol. 50, no. 5, Springer Nature,
2018, pp. 746–53, doi:10.1038/s41588-018-0101-4.
short: J. Zeng, R. de Vlaming, Y. Wu, M.R. Robinson, L.R. Lloyd-Jones, L. Yengo,
C.X. Yap, A. Xue, J. Sidorenko, A.F. McRae, J.E. Powell, G.W. Montgomery, A. Metspalu,
T. Esko, G. Gibson, N.R. Wray, P.M. Visscher, J. Yang, Nature Genetics 50 (2018)
746–753.
date_created: 2020-04-30T10:44:57Z
date_published: 2018-04-16T00:00:00Z
date_updated: 2021-01-12T08:15:06Z
day: '16'
doi: 10.1038/s41588-018-0101-4
extern: '1'
intvolume: ' 50'
issue: '5'
language:
- iso: eng
month: '04'
oa_version: None
page: 746-753
publication: Nature Genetics
publication_identifier:
issn:
- 1061-4036
- 1546-1718
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Signatures of negative selection in the genetic architecture of human complex
traits
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 50
year: '2018'
...
---
_id: '7723'
abstract:
- lang: eng
text: Genome-wide association studies (GWAS) have identified thousands of loci that
are robustly associated with complex diseases. The use of linear mixed model (LMM)
methodology for GWAS is becoming more prevalent due to its ability to control
for population structure and cryptic relatedness and to increase power. The odds
ratio (OR) is a common measure of the association of a disease with an exposure
(e.g., a genetic variant) and is readably available from logistic regression.
However, when the LMM is applied to all-or-none traits it provides estimates of
genetic effects on the observed 0–1 scale, a different scale to that in logistic
regression. This limits the comparability of results across studies, for example
in a meta-analysis, and makes the interpretation of the magnitude of an effect
from an LMM GWAS difficult. In this study, we derived transformations from the
genetic effects estimated under the LMM to the OR that only rely on summary statistics.
To test the proposed transformations, we used real genotypes from two large, publicly
available data sets to simulate all-or-none phenotypes for a set of scenarios
that differ in underlying model, disease prevalence, and heritability. Furthermore,
we applied these transformations to GWAS summary statistics for type 2 diabetes
generated from 108,042 individuals in the UK Biobank. In both simulation and real-data
application, we observed very high concordance between the transformed OR from
the LMM and either the simulated truth or estimates from logistic regression.
The transformations derived and validated in this study improve the comparability
of results from prospective and already performed LMM GWAS on complex diseases
by providing a reliable transformation to a common comparative scale for the genetic
effects.
article_processing_charge: No
article_type: original
author:
- first_name: Luke R.
full_name: Lloyd-Jones, Luke R.
last_name: Lloyd-Jones
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Jian
full_name: Yang, Jian
last_name: Yang
- first_name: Peter M.
full_name: Visscher, Peter M.
last_name: Visscher
citation:
ama: Lloyd-Jones LR, Robinson MR, Yang J, Visscher PM. Transformation of summary
statistics from linear mixed model association on all-or-none traits to odds ratio.
Genetics. 2018;208(4):1397-1408. doi:10.1534/genetics.117.300360
apa: Lloyd-Jones, L. R., Robinson, M. R., Yang, J., & Visscher, P. M. (2018).
Transformation of summary statistics from linear mixed model association on all-or-none
traits to odds ratio. Genetics. Genetics Society of America. https://doi.org/10.1534/genetics.117.300360
chicago: Lloyd-Jones, Luke R., Matthew Richard Robinson, Jian Yang, and Peter M.
Visscher. “Transformation of Summary Statistics from Linear Mixed Model Association
on All-or-None Traits to Odds Ratio.” Genetics. Genetics Society of America,
2018. https://doi.org/10.1534/genetics.117.300360.
ieee: L. R. Lloyd-Jones, M. R. Robinson, J. Yang, and P. M. Visscher, “Transformation
of summary statistics from linear mixed model association on all-or-none traits
to odds ratio,” Genetics, vol. 208, no. 4. Genetics Society of America,
pp. 1397–1408, 2018.
ista: Lloyd-Jones LR, Robinson MR, Yang J, Visscher PM. 2018. Transformation of
summary statistics from linear mixed model association on all-or-none traits to
odds ratio. Genetics. 208(4), 1397–1408.
mla: Lloyd-Jones, Luke R., et al. “Transformation of Summary Statistics from Linear
Mixed Model Association on All-or-None Traits to Odds Ratio.” Genetics,
vol. 208, no. 4, Genetics Society of America, 2018, pp. 1397–408, doi:10.1534/genetics.117.300360.
short: L.R. Lloyd-Jones, M.R. Robinson, J. Yang, P.M. Visscher, Genetics 208 (2018)
1397–1408.
date_created: 2020-04-30T10:45:19Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2021-01-12T08:15:06Z
day: '01'
doi: 10.1534/genetics.117.300360
extern: '1'
intvolume: ' 208'
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
page: 1397-1408
publication: Genetics
publication_identifier:
issn:
- 0016-6731
- 1943-2631
publication_status: published
publisher: Genetics Society of America
quality_controlled: '1'
status: public
title: Transformation of summary statistics from linear mixed model association on
all-or-none traits to odds ratio
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 208
year: '2018'
...
---
_id: '7724'
abstract:
- lang: eng
text: Modern molecular genetic datasets, primarily collected to study the biology
of human health and disease, can be used to directly measure the action of natural
selection and reveal important features of contemporary human evolution. Here
we leverage the UK Biobank data to test for the presence of linear and nonlinear
natural selection in a contemporary population of the United Kingdom. We obtain
phenotypic and genetic evidence consistent with the action of linear/directional
selection. Phenotypic evidence suggests that stabilizing selection, which acts
to reduce variance in the population without necessarily modifying the population
mean, is widespread and relatively weak in comparison with estimates from other
species.
article_processing_charge: No
article_type: original
author:
- first_name: Jaleal S.
full_name: Sanjak, Jaleal S.
last_name: Sanjak
- first_name: Julia
full_name: Sidorenko, Julia
last_name: Sidorenko
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Kevin R.
full_name: Thornton, Kevin R.
last_name: Thornton
- first_name: Peter M.
full_name: Visscher, Peter M.
last_name: Visscher
citation:
ama: Sanjak JS, Sidorenko J, Robinson MR, Thornton KR, Visscher PM. Evidence of
directional and stabilizing selection in contemporary humans. Proceedings of
the National Academy of Sciences. 2018;115(1):151-156. doi:10.1073/pnas.1707227114
apa: Sanjak, J. S., Sidorenko, J., Robinson, M. R., Thornton, K. R., & Visscher,
P. M. (2018). Evidence of directional and stabilizing selection in contemporary
humans. Proceedings of the National Academy of Sciences. Proceedings of
the National Academy of Sciences. https://doi.org/10.1073/pnas.1707227114
chicago: Sanjak, Jaleal S., Julia Sidorenko, Matthew Richard Robinson, Kevin R.
Thornton, and Peter M. Visscher. “Evidence of Directional and Stabilizing Selection
in Contemporary Humans.” Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences, 2018. https://doi.org/10.1073/pnas.1707227114.
ieee: J. S. Sanjak, J. Sidorenko, M. R. Robinson, K. R. Thornton, and P. M. Visscher,
“Evidence of directional and stabilizing selection in contemporary humans,” Proceedings
of the National Academy of Sciences, vol. 115, no. 1. Proceedings of the National
Academy of Sciences, pp. 151–156, 2018.
ista: Sanjak JS, Sidorenko J, Robinson MR, Thornton KR, Visscher PM. 2018. Evidence
of directional and stabilizing selection in contemporary humans. Proceedings of
the National Academy of Sciences. 115(1), 151–156.
mla: Sanjak, Jaleal S., et al. “Evidence of Directional and Stabilizing Selection
in Contemporary Humans.” Proceedings of the National Academy of Sciences,
vol. 115, no. 1, Proceedings of the National Academy of Sciences, 2018, pp. 151–56,
doi:10.1073/pnas.1707227114.
short: J.S. Sanjak, J. Sidorenko, M.R. Robinson, K.R. Thornton, P.M. Visscher, Proceedings
of the National Academy of Sciences 115 (2018) 151–156.
date_created: 2020-04-30T10:45:43Z
date_published: 2018-01-02T00:00:00Z
date_updated: 2021-01-12T08:15:07Z
day: '02'
doi: 10.1073/pnas.1707227114
extern: '1'
intvolume: ' 115'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 151-156
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1073/pnas.1806837115
status: public
title: Evidence of directional and stabilizing selection in contemporary humans
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 115
year: '2018'
...
---
_id: '7754'
abstract:
- lang: eng
text: Creating a selective gel that filters particles based on their interactions
is a major goal of nanotechnology, with far-reaching implications from drug delivery
to controlling assembly pathways. However, this is particularly difficult when
the particles are larger than the gel’s characteristic mesh size because such
particles cannot passively pass through the gel. Thus, filtering requires the
interacting particles to transiently reorganize the gel’s internal structure.
While significant advances, e.g., in DNA engineering, have enabled the design
of nano-materials with programmable interactions, it is not clear what physical
principles such a designer gel could exploit to achieve selective permeability.
We present an equilibrium mechanism where crosslink binding dynamics are affected
by interacting particles such that particle diffusion is enhanced. In addition
to revealing specific design rules for manufacturing selective gels, our results
have the potential to explain the origin of selective permeability in certain
biological materials, including the nuclear pore complex.
article_number: '4348'
article_processing_charge: No
article_type: original
author:
- first_name: Carl Peter
full_name: Goodrich, Carl Peter
id: EB352CD2-F68A-11E9-89C5-A432E6697425
last_name: Goodrich
orcid: 0000-0002-1307-5074
- first_name: Michael P.
full_name: Brenner, Michael P.
last_name: Brenner
- first_name: Katharina
full_name: Ribbeck, Katharina
last_name: Ribbeck
citation:
ama: Goodrich CP, Brenner MP, Ribbeck K. Enhanced diffusion by binding to the crosslinks
of a polymer gel. Nature Communications. 2018;9. doi:10.1038/s41467-018-06851-5
apa: Goodrich, C. P., Brenner, M. P., & Ribbeck, K. (2018). Enhanced diffusion
by binding to the crosslinks of a polymer gel. Nature Communications. Springer
Nature. https://doi.org/10.1038/s41467-018-06851-5
chicago: Goodrich, Carl Peter, Michael P. Brenner, and Katharina Ribbeck. “Enhanced
Diffusion by Binding to the Crosslinks of a Polymer Gel.” Nature Communications.
Springer Nature, 2018. https://doi.org/10.1038/s41467-018-06851-5.
ieee: C. P. Goodrich, M. P. Brenner, and K. Ribbeck, “Enhanced diffusion by binding
to the crosslinks of a polymer gel,” Nature Communications, vol. 9. Springer
Nature, 2018.
ista: Goodrich CP, Brenner MP, Ribbeck K. 2018. Enhanced diffusion by binding to
the crosslinks of a polymer gel. Nature Communications. 9, 4348.
mla: Goodrich, Carl Peter, et al. “Enhanced Diffusion by Binding to the Crosslinks
of a Polymer Gel.” Nature Communications, vol. 9, 4348, Springer Nature,
2018, doi:10.1038/s41467-018-06851-5.
short: C.P. Goodrich, M.P. Brenner, K. Ribbeck, Nature Communications 9 (2018).
date_created: 2020-04-30T11:38:01Z
date_published: 2018-10-19T00:00:00Z
date_updated: 2021-01-12T08:15:18Z
day: '19'
doi: 10.1038/s41467-018-06851-5
extern: '1'
intvolume: ' 9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41467-018-06851-5
month: '10'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Enhanced diffusion by binding to the crosslinks of a polymer gel
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2018'
...
---
_id: '456'
abstract:
- lang: eng
text: 'Inhibition of the endoplasmic reticulum stress pathway may hold the key to
Zika virus-associated microcephaly treatment. '
article_number: eaar7514
author:
- first_name: Gaia
full_name: Novarino, Gaia
id: 3E57A680-F248-11E8-B48F-1D18A9856A87
last_name: Novarino
orcid: 0000-0002-7673-7178
citation:
ama: 'Novarino G. Zika-associated microcephaly: Reduce the stress and race for the
treatment. Science Translational Medicine. 2018;10(423). doi:10.1126/scitranslmed.aar7514'
apa: 'Novarino, G. (2018). Zika-associated microcephaly: Reduce the stress and race
for the treatment. Science Translational Medicine. American Association
for the Advancement of Science. https://doi.org/10.1126/scitranslmed.aar7514'
chicago: 'Novarino, Gaia. “Zika-Associated Microcephaly: Reduce the Stress and Race
for the Treatment.” Science Translational Medicine. American Association
for the Advancement of Science, 2018. https://doi.org/10.1126/scitranslmed.aar7514.'
ieee: 'G. Novarino, “Zika-associated microcephaly: Reduce the stress and race for
the treatment,” Science Translational Medicine, vol. 10, no. 423. American
Association for the Advancement of Science, 2018.'
ista: 'Novarino G. 2018. Zika-associated microcephaly: Reduce the stress and race
for the treatment. Science Translational Medicine. 10(423), eaar7514.'
mla: 'Novarino, Gaia. “Zika-Associated Microcephaly: Reduce the Stress and Race
for the Treatment.” Science Translational Medicine, vol. 10, no. 423, eaar7514,
American Association for the Advancement of Science, 2018, doi:10.1126/scitranslmed.aar7514.'
short: G. Novarino, Science Translational Medicine 10 (2018).
date_created: 2018-12-11T11:46:34Z
date_published: 2018-01-10T00:00:00Z
date_updated: 2021-01-12T07:59:42Z
day: '10'
department:
- _id: GaNo
doi: 10.1126/scitranslmed.aar7514
intvolume: ' 10'
issue: '423'
language:
- iso: eng
month: '01'
oa_version: None
publication: Science Translational Medicine
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '7365'
quality_controlled: '1'
scopus_import: 1
status: public
title: 'Zika-associated microcephaly: Reduce the stress and race for the treatment'
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2018'
...
---
_id: '457'
abstract:
- lang: eng
text: Temperate bacteriophages integrate in bacterial genomes as prophages and represent
an important source of genetic variation for bacterial evolution, frequently transmitting
fitness-augmenting genes such as toxins responsible for virulence of major pathogens.
However, only a fraction of bacteriophage infections are lysogenic and lead to
prophage acquisition, whereas the majority are lytic and kill the infected bacteria.
Unless able to discriminate lytic from lysogenic infections, mechanisms of immunity
to bacteriophages are expected to act as a double-edged sword and increase the
odds of survival at the cost of depriving bacteria of potentially beneficial prophages.
We show that although restriction-modification systems as mechanisms of innate
immunity prevent both lytic and lysogenic infections indiscriminately in individual
bacteria, they increase the number of prophage-acquiring individuals at the population
level. We find that this counterintuitive result is a consequence of phage-host
population dynamics, in which restriction-modification systems delay infection
onset until bacteria reach densities at which the probability of lysogeny increases.
These results underscore the importance of population-level dynamics as a key
factor modulating costs and benefits of immunity to temperate bacteriophages
article_processing_charge: No
author:
- first_name: Maros
full_name: Pleska, Maros
id: 4569785E-F248-11E8-B48F-1D18A9856A87
last_name: Pleska
orcid: 0000-0001-7460-7479
- first_name: Moritz
full_name: Lang, Moritz
id: 29E0800A-F248-11E8-B48F-1D18A9856A87
last_name: Lang
- first_name: Dominik
full_name: Refardt, Dominik
last_name: Refardt
- first_name: Bruce
full_name: Levin, Bruce
last_name: Levin
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Pleska M, Lang M, Refardt D, Levin B, Guet CC. Phage-host population dynamics
promotes prophage acquisition in bacteria with innate immunity. Nature Ecology
and Evolution. 2018;2(2):359-366. doi:10.1038/s41559-017-0424-z
apa: Pleska, M., Lang, M., Refardt, D., Levin, B., & Guet, C. C. (2018). Phage-host
population dynamics promotes prophage acquisition in bacteria with innate immunity.
Nature Ecology and Evolution. Springer Nature. https://doi.org/10.1038/s41559-017-0424-z
chicago: Pleska, Maros, Moritz Lang, Dominik Refardt, Bruce Levin, and Calin C Guet.
“Phage-Host Population Dynamics Promotes Prophage Acquisition in Bacteria with
Innate Immunity.” Nature Ecology and Evolution. Springer Nature, 2018.
https://doi.org/10.1038/s41559-017-0424-z.
ieee: M. Pleska, M. Lang, D. Refardt, B. Levin, and C. C. Guet, “Phage-host population
dynamics promotes prophage acquisition in bacteria with innate immunity,” Nature
Ecology and Evolution, vol. 2, no. 2. Springer Nature, pp. 359–366, 2018.
ista: Pleska M, Lang M, Refardt D, Levin B, Guet CC. 2018. Phage-host population
dynamics promotes prophage acquisition in bacteria with innate immunity. Nature
Ecology and Evolution. 2(2), 359–366.
mla: Pleska, Maros, et al. “Phage-Host Population Dynamics Promotes Prophage Acquisition
in Bacteria with Innate Immunity.” Nature Ecology and Evolution, vol. 2,
no. 2, Springer Nature, 2018, pp. 359–66, doi:10.1038/s41559-017-0424-z.
short: M. Pleska, M. Lang, D. Refardt, B. Levin, C.C. Guet, Nature Ecology and Evolution
2 (2018) 359–366.
date_created: 2018-12-11T11:46:35Z
date_published: 2018-02-01T00:00:00Z
date_updated: 2023-09-15T12:04:57Z
day: '01'
department:
- _id: CaGu
- _id: GaTk
doi: 10.1038/s41559-017-0424-z
ec_funded: 1
external_id:
isi:
- '000426516400027'
intvolume: ' 2'
isi: 1
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 359 - 366
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 251BCBEC-B435-11E9-9278-68D0E5697425
grant_number: RGY0079/2011
name: Multi-Level Conflicts in Evolutionary Dynamics of Restriction-Modification
Systems (HFSP Young investigators' grant)
- _id: 251D65D8-B435-11E9-9278-68D0E5697425
grant_number: '24210'
name: Effects of Stochasticity on the Function of Restriction-Modi cation Systems
at the Single-Cell Level (DOC Fellowship)
publication: Nature Ecology and Evolution
publication_status: published
publisher: Springer Nature
publist_id: '7364'
quality_controlled: '1'
related_material:
record:
- id: '202'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Phage-host population dynamics promotes prophage acquisition in bacteria with
innate immunity
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2
year: '2018'
...
---
_id: '458'
abstract:
- lang: eng
text: We consider congruences of straight lines in a plane with the combinatorics
of the square grid, with all elementary quadrilaterals possessing an incircle.
It is shown that all the vertices of such nets (we call them incircular or IC-nets)
lie on confocal conics. Our main new results are on checkerboard IC-nets in the
plane. These are congruences of straight lines in the plane with the combinatorics
of the square grid, combinatorially colored as a checkerboard, such that all black
coordinate quadrilaterals possess inscribed circles. We show how this larger class
of IC-nets appears quite naturally in Laguerre geometry of oriented planes and
spheres and leads to new remarkable incidence theorems. Most of our results are
valid in hyperbolic and spherical geometries as well. We present also generalizations
in spaces of higher dimension, called checkerboard IS-nets. The construction of
these nets is based on a new 9 inspheres incidence theorem.
acknowledgement: DFG Collaborative Research Center TRR 109 “Discretization in Geometry
and Dynamics”; People Programme (Marie Curie Actions) of the European Union’s Seventh
Framework Programme (FP7/2007-2013) REA grant agreement n◦[291734]
article_processing_charge: No
author:
- first_name: Arseniy
full_name: Akopyan, Arseniy
id: 430D2C90-F248-11E8-B48F-1D18A9856A87
last_name: Akopyan
orcid: 0000-0002-2548-617X
- first_name: Alexander
full_name: Bobenko, Alexander
last_name: Bobenko
citation:
ama: Akopyan A, Bobenko A. Incircular nets and confocal conics. Transactions
of the American Mathematical Society. 2018;370(4):2825-2854. doi:10.1090/tran/7292
apa: Akopyan, A., & Bobenko, A. (2018). Incircular nets and confocal conics.
Transactions of the American Mathematical Society. American Mathematical
Society. https://doi.org/10.1090/tran/7292
chicago: Akopyan, Arseniy, and Alexander Bobenko. “Incircular Nets and Confocal
Conics.” Transactions of the American Mathematical Society. American Mathematical
Society, 2018. https://doi.org/10.1090/tran/7292.
ieee: A. Akopyan and A. Bobenko, “Incircular nets and confocal conics,” Transactions
of the American Mathematical Society, vol. 370, no. 4. American Mathematical
Society, pp. 2825–2854, 2018.
ista: Akopyan A, Bobenko A. 2018. Incircular nets and confocal conics. Transactions
of the American Mathematical Society. 370(4), 2825–2854.
mla: Akopyan, Arseniy, and Alexander Bobenko. “Incircular Nets and Confocal Conics.”
Transactions of the American Mathematical Society, vol. 370, no. 4, American
Mathematical Society, 2018, pp. 2825–54, doi:10.1090/tran/7292.
short: A. Akopyan, A. Bobenko, Transactions of the American Mathematical Society
370 (2018) 2825–2854.
date_created: 2018-12-11T11:46:35Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2023-09-11T14:19:12Z
day: '01'
department:
- _id: HeEd
doi: 10.1090/tran/7292
ec_funded: 1
external_id:
isi:
- '000423197800019'
intvolume: ' 370'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1602.04637
month: '04'
oa: 1
oa_version: Preprint
page: 2825 - 2854
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Transactions of the American Mathematical Society
publication_status: published
publisher: American Mathematical Society
publist_id: '7363'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Incircular nets and confocal conics
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 370
year: '2018'
...
---
_id: '46'
abstract:
- lang: eng
text: We analyze a disordered central spin model, where a central spin interacts
equally with each spin in a periodic one-dimensional (1D) random-field Heisenberg
chain. If the Heisenberg chain is initially in the many-body localized (MBL) phase,
we find that the coupling to the central spin suffices to delocalize the chain
for a substantial range of coupling strengths. We calculate the phase diagram
of the model and identify the phase boundary between the MBL and ergodic phase.
Within the localized phase, the central spin significantly enhances the rate of
the logarithmic entanglement growth and its saturation value. We attribute the
increase in entanglement entropy to a nonextensive enhancement of magnetization
fluctuations induced by the central spin. Finally, we demonstrate that correlation
functions of the central spin can be utilized to distinguish between MBL and ergodic
phases of the 1D chain. Hence, we propose the use of a central spin as a possible
experimental probe to identify the MBL phase.
acknowledgement: F.P. acknowledges the sup- port of the DFG Research Unit FOR 1807
through Grants No. PO 1370/2-1 and No. TRR80, the Nanosystems Initiative Munich
(NIM) by the German Excellence Initiative, and the European Research Council (ERC)
under the European Union’s Horizon 2020 research and innovation programme (Grant
Agreement No. 771537). N.Y.Y. acknowledges support from the NSF (PHY-1654740), the
ARO STIR program, and a Google research award.
article_number: '161122'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Daniel
full_name: Hetterich, Daniel
last_name: Hetterich
- first_name: Norman
full_name: Yao, Norman
last_name: Yao
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Frank
full_name: Pollmann, Frank
last_name: Pollmann
- first_name: Björn
full_name: Trauzettel, Björn
last_name: Trauzettel
citation:
ama: Hetterich D, Yao N, Serbyn M, Pollmann F, Trauzettel B. Detection and characterization
of many-body localization in central spin models. Physical Review B. 2018;98(16).
doi:10.1103/PhysRevB.98.161122
apa: Hetterich, D., Yao, N., Serbyn, M., Pollmann, F., & Trauzettel, B. (2018).
Detection and characterization of many-body localization in central spin models.
Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.98.161122
chicago: Hetterich, Daniel, Norman Yao, Maksym Serbyn, Frank Pollmann, and Björn
Trauzettel. “Detection and Characterization of Many-Body Localization in Central
Spin Models.” Physical Review B. American Physical Society, 2018. https://doi.org/10.1103/PhysRevB.98.161122.
ieee: D. Hetterich, N. Yao, M. Serbyn, F. Pollmann, and B. Trauzettel, “Detection
and characterization of many-body localization in central spin models,” Physical
Review B, vol. 98, no. 16. American Physical Society, 2018.
ista: Hetterich D, Yao N, Serbyn M, Pollmann F, Trauzettel B. 2018. Detection and
characterization of many-body localization in central spin models. Physical Review
B. 98(16), 161122.
mla: Hetterich, Daniel, et al. “Detection and Characterization of Many-Body Localization
in Central Spin Models.” Physical Review B, vol. 98, no. 16, 161122, American
Physical Society, 2018, doi:10.1103/PhysRevB.98.161122.
short: D. Hetterich, N. Yao, M. Serbyn, F. Pollmann, B. Trauzettel, Physical Review
B 98 (2018).
date_created: 2018-12-11T11:44:20Z
date_published: 2018-10-15T00:00:00Z
date_updated: 2023-09-11T12:55:03Z
day: '15'
department:
- _id: MaSe
doi: 10.1103/PhysRevB.98.161122
external_id:
arxiv:
- '1806.08316'
isi:
- '000448596500002'
intvolume: ' 98'
isi: 1
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1806.08316
month: '10'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_status: published
publisher: American Physical Society
publist_id: '8008'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Detection and characterization of many-body localization in central spin models
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 98
year: '2018'
...
---
_id: '461'
abstract:
- lang: eng
text: Turbulence is the major cause of friction losses in transport processes and
it is responsible for a drastic drag increase in flows over bounding surfaces.
While much effort is invested into developing ways to control and reduce turbulence
intensities, so far no methods exist to altogether eliminate turbulence if velocities
are sufficiently large. We demonstrate for pipe flow that appropriate distortions
to the velocity profile lead to a complete collapse of turbulence and subsequently
friction losses are reduced by as much as 90%. Counterintuitively, the return
to laminar motion is accomplished by initially increasing turbulence intensities
or by transiently amplifying wall shear. Since neither the Reynolds number nor
the shear stresses decrease (the latter often increase), these measures are not
indicative of turbulence collapse. Instead, an amplification mechanism measuring
the interaction between eddies and the mean shear is found to set a threshold
below which turbulence is suppressed beyond recovery.
acknowledgement: We acknowledge the European Research Council under the European Union’s
Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement 306589, the European
Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
programme (grant agreement no. 737549) and the Deutsche Forschungsgemeinschaft (Project
No. FOR 1182) for financial support. We thank our technician P. Maier for providing
highly valuable ideas and greatly supporting us in all technical aspects. We thank
M. Schaner for technical drawings, construction and design. We thank M. Schwegel
for a Matlab code to post-process experimental data.
article_processing_charge: No
author:
- first_name: Jakob
full_name: Kühnen, Jakob
id: 3A47AE32-F248-11E8-B48F-1D18A9856A87
last_name: Kühnen
orcid: 0000-0003-4312-0179
- first_name: Baofang
full_name: Song, Baofang
last_name: Song
- first_name: Davide
full_name: Scarselli, Davide
id: 40315C30-F248-11E8-B48F-1D18A9856A87
last_name: Scarselli
orcid: 0000-0001-5227-4271
- first_name: Nazmi B
full_name: Budanur, Nazmi B
id: 3EA1010E-F248-11E8-B48F-1D18A9856A87
last_name: Budanur
orcid: 0000-0003-0423-5010
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
- first_name: Ashley
full_name: Willis, Ashley
last_name: Willis
- first_name: Marc
full_name: Avila, Marc
last_name: Avila
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
citation:
ama: Kühnen J, Song B, Scarselli D, et al. Destabilizing turbulence in pipe flow.
Nature Physics. 2018;14:386-390. doi:10.1038/s41567-017-0018-3
apa: Kühnen, J., Song, B., Scarselli, D., Budanur, N. B., Riedl, M., Willis, A.,
… Hof, B. (2018). Destabilizing turbulence in pipe flow. Nature Physics.
Nature Publishing Group. https://doi.org/10.1038/s41567-017-0018-3
chicago: Kühnen, Jakob, Baofang Song, Davide Scarselli, Nazmi B Budanur, Michael
Riedl, Ashley Willis, Marc Avila, and Björn Hof. “Destabilizing Turbulence in
Pipe Flow.” Nature Physics. Nature Publishing Group, 2018. https://doi.org/10.1038/s41567-017-0018-3.
ieee: J. Kühnen et al., “Destabilizing turbulence in pipe flow,” Nature
Physics, vol. 14. Nature Publishing Group, pp. 386–390, 2018.
ista: Kühnen J, Song B, Scarselli D, Budanur NB, Riedl M, Willis A, Avila M, Hof
B. 2018. Destabilizing turbulence in pipe flow. Nature Physics. 14, 386–390.
mla: Kühnen, Jakob, et al. “Destabilizing Turbulence in Pipe Flow.” Nature Physics,
vol. 14, Nature Publishing Group, 2018, pp. 386–90, doi:10.1038/s41567-017-0018-3.
short: J. Kühnen, B. Song, D. Scarselli, N.B. Budanur, M. Riedl, A. Willis, M. Avila,
B. Hof, Nature Physics 14 (2018) 386–390.
date_created: 2018-12-11T11:46:36Z
date_published: 2018-01-08T00:00:00Z
date_updated: 2024-03-25T23:30:20Z
day: '08'
department:
- _id: BjHo
doi: 10.1038/s41567-017-0018-3
ec_funded: 1
external_id:
isi:
- '000429434100020'
intvolume: ' 14'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1711.06543
month: '01'
oa: 1
oa_version: Preprint
page: 386-390
project:
- _id: 25152F3A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '306589'
name: Decoding the complexity of turbulence at its origin
- _id: 25104D44-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '737549'
name: Eliminating turbulence in oil pipelines
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '7360'
quality_controlled: '1'
related_material:
record:
- id: '12726'
relation: dissertation_contains
status: public
- id: '14530'
relation: dissertation_contains
status: public
- id: '7258'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Destabilizing turbulence in pipe flow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 14
year: '2018'
...
---
_id: '462'
abstract:
- lang: eng
text: 'AtNHX5 and AtNHX6 are endosomal Na+,K+/H+ antiporters that are critical for
growth and development in Arabidopsis, but the mechanism behind their action remains
unknown. Here, we report that AtNHX5 and AtNHX6, functioning as H+ leak, control
auxin homeostasis and auxin-mediated development. We found that nhx5 nhx6 exhibited
growth variations of auxin-related defects. We further showed that nhx5 nhx6 was
affected in auxin homeostasis. Genetic analysis showed that AtNHX5 and AtNHX6
were required for the function of the ER-localized auxin transporter PIN5. Although
AtNHX5 and AtNHX6 were co-localized with PIN5 at ER, they did not interact directly.
Instead, the conserved acidic residues in AtNHX5 and AtNHX6, which are essential
for exchange activity, were required for PIN5 function. AtNHX5 and AtNHX6 regulated
the pH in ER. Overall, AtNHX5 and AtNHX6 may regulate auxin transport across the
ER via the pH gradient created by their transport activity. H+-leak pathway provides
a fine-tuning mechanism that controls cellular auxin fluxes. '
acknowledgement: 'This work was supported by the National Natural Science Foundation
of China (31571464, 31371438 and 31070222 to Q.S.Q.), the National Basic Research
Program of China (973 project, 2013CB429904 to Q.S.Q.), the Research Fund for the
Doctoral Program of Higher Education of China (20130211110001 to Q.S.Q.), the Ministry
of Education, Youth and Sports of the Czech Republic (the National Program for Sustainability
I, LO1204), and The Czech Science Foundation GAČR (GA13–40637S) to JF. We thank
Dr. Tom J. Guilfoyle for DR5::GUS line and Dr. Jia Li for pBIB‐RFP vector and DR5::GFP
line. We thank Liping Guan and Yang Zhao for their help with the confocal microscope
assay. '
article_processing_charge: No
article_type: original
author:
- first_name: Ligang
full_name: Fan, Ligang
last_name: Fan
- first_name: Lei
full_name: Zhao, Lei
last_name: Zhao
- first_name: Wei
full_name: Hu, Wei
last_name: Hu
- first_name: Weina
full_name: Li, Weina
last_name: Li
- first_name: Ondřej
full_name: Novák, Ondřej
last_name: Novák
- first_name: Miroslav
full_name: Strnad, Miroslav
last_name: Strnad
- first_name: Sibu
full_name: Simon, Sibu
id: 4542EF9A-F248-11E8-B48F-1D18A9856A87
last_name: Simon
orcid: 0000-0002-1998-6741
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Jinbo
full_name: Shen, Jinbo
last_name: Shen
- first_name: Liwen
full_name: Jiang, Liwen
last_name: Jiang
- first_name: Quan
full_name: Qiu, Quan
last_name: Qiu
citation:
ama: Fan L, Zhao L, Hu W, et al. NHX antiporters regulate the pH of endoplasmic
reticulum and auxin-mediated development. Plant, Cell and Environment.
2018;41:850-864. doi:10.1111/pce.13153
apa: Fan, L., Zhao, L., Hu, W., Li, W., Novák, O., Strnad, M., … Qiu, Q. (2018).
NHX antiporters regulate the pH of endoplasmic reticulum and auxin-mediated development.
Plant, Cell and Environment. Wiley-Blackwell. https://doi.org/10.1111/pce.13153
chicago: Fan, Ligang, Lei Zhao, Wei Hu, Weina Li, Ondřej Novák, Miroslav Strnad,
Sibu Simon, et al. “NHX Antiporters Regulate the PH of Endoplasmic Reticulum and
Auxin-Mediated Development.” Plant, Cell and Environment. Wiley-Blackwell,
2018. https://doi.org/10.1111/pce.13153.
ieee: L. Fan et al., “NHX antiporters regulate the pH of endoplasmic reticulum
and auxin-mediated development,” Plant, Cell and Environment, vol. 41.
Wiley-Blackwell, pp. 850–864, 2018.
ista: Fan L, Zhao L, Hu W, Li W, Novák O, Strnad M, Simon S, Friml J, Shen J, Jiang
L, Qiu Q. 2018. NHX antiporters regulate the pH of endoplasmic reticulum and auxin-mediated
development. Plant, Cell and Environment. 41, 850–864.
mla: Fan, Ligang, et al. “NHX Antiporters Regulate the PH of Endoplasmic Reticulum
and Auxin-Mediated Development.” Plant, Cell and Environment, vol. 41,
Wiley-Blackwell, 2018, pp. 850–64, doi:10.1111/pce.13153.
short: L. Fan, L. Zhao, W. Hu, W. Li, O. Novák, M. Strnad, S. Simon, J. Friml, J.
Shen, L. Jiang, Q. Qiu, Plant, Cell and Environment 41 (2018) 850–864.
date_created: 2018-12-11T11:46:36Z
date_published: 2018-05-01T00:00:00Z
date_updated: 2023-09-13T09:03:18Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1111/pce.13153
external_id:
isi:
- '000426870500012'
pmid:
- '29360148'
file:
- access_level: open_access
checksum: 6a20f843565f962cb20281cdf5e40914
content_type: application/pdf
creator: dernst
date_created: 2019-11-18T16:22:22Z
date_updated: 2020-07-14T12:46:32Z
file_id: '7042'
file_name: 2018_PlantCellEnv_Fan.pdf
file_size: 1937976
relation: main_file
file_date_updated: 2020-07-14T12:46:32Z
has_accepted_license: '1'
intvolume: ' 41'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 850 - 864
pmid: 1
publication: Plant, Cell and Environment
publication_status: published
publisher: Wiley-Blackwell
publist_id: '7359'
quality_controlled: '1'
scopus_import: '1'
status: public
title: NHX antiporters regulate the pH of endoplasmic reticulum and auxin-mediated
development
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 41
year: '2018'
...
---
_id: '47'
abstract:
- lang: eng
text: Plant hormones as signalling molecules play an essential role in the control
of plant growth and development. Typically, sites of hormonal action are usually
distant from the site of biosynthesis thus relying on efficient transport mechanisms.
Over the last decades, molecular identification of proteins and protein complexes
involved in hormonal transport has started. Advanced screens for genes involved
in hormonal transport in combination with transport assays using heterologous
systems such as yeast, insect, or tobacco BY2 cells or Xenopus oocytes provided
important insights into mechanisms underlying distribution of hormones in plant
body and led to identification of principal transporters for each hormone. This
review gives a short overview of the mechanisms of hormonal transport and transporters
identified in Arabidopsis thaliana.
article_processing_charge: No
author:
- first_name: Rashed
full_name: Abualia, Rashed
id: 4827E134-F248-11E8-B48F-1D18A9856A87
last_name: Abualia
orcid: 0000-0002-9357-9415
- first_name: Eva
full_name: Benková, Eva
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
- first_name: Benoît
full_name: Lacombe, Benoît
last_name: Lacombe
citation:
ama: Abualia R, Benková E, Lacombe B. Transporters and mechanisms of hormone transport
in arabidopsis. Advances in Botanical Research. 2018;87:115-138. doi:10.1016/bs.abr.2018.09.007
apa: Abualia, R., Benková, E., & Lacombe, B. (2018). Transporters and mechanisms
of hormone transport in arabidopsis. Advances in Botanical Research. Elsevier.
https://doi.org/10.1016/bs.abr.2018.09.007
chicago: Abualia, Rashed, Eva Benková, and Benoît Lacombe. “Transporters and Mechanisms
of Hormone Transport in Arabidopsis.” Advances in Botanical Research. Elsevier,
2018. https://doi.org/10.1016/bs.abr.2018.09.007.
ieee: R. Abualia, E. Benková, and B. Lacombe, “Transporters and mechanisms of hormone
transport in arabidopsis,” Advances in Botanical Research, vol. 87. Elsevier,
pp. 115–138, 2018.
ista: Abualia R, Benková E, Lacombe B. 2018. Transporters and mechanisms of hormone
transport in arabidopsis. Advances in Botanical Research. 87, 115–138.
mla: Abualia, Rashed, et al. “Transporters and Mechanisms of Hormone Transport in
Arabidopsis.” Advances in Botanical Research, vol. 87, Elsevier, 2018,
pp. 115–38, doi:10.1016/bs.abr.2018.09.007.
short: R. Abualia, E. Benková, B. Lacombe, Advances in Botanical Research 87 (2018)
115–138.
date_created: 2018-12-11T11:44:20Z
date_published: 2018-01-01T00:00:00Z
date_updated: 2024-03-25T23:30:22Z
day: '01'
department:
- _id: EvBe
doi: 10.1016/bs.abr.2018.09.007
external_id:
isi:
- '000453657800006'
intvolume: ' 87'
isi: 1
language:
- iso: eng
month: '01'
oa_version: None
page: 115 - 138
publication: Advances in Botanical Research
publication_status: published
publisher: Elsevier
publist_id: '8007'
quality_controlled: '1'
related_material:
record:
- id: '10303'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Transporters and mechanisms of hormone transport in arabidopsis
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 87
year: '2018'
...
---
_id: '48'
abstract:
- lang: eng
text: 'The hippocampus is a key brain region for spatial memory and navigation and
is needed at all stages of memory, including encoding, consolidation, and recall.
Hippocampal place cells selectively discharge at specific locations of the environment
to form a cognitive map of the space. During the rest period and sleep following
spatial navigation and/or learning, the waking activity of the place cells is
reactivated within high synchrony events. This reactivation is thought to be important
for memory consolidation and stabilization of the spatial representations. The
aim of my thesis was to directly test whether the reactivation content encoded
in firing patterns of place cells is important for consolidation of spatial memories.
In particular, I aimed to test whether, in cases when multiple spatial memory
traces are acquired during learning, the specific disruption of the reactivation
of a subset of these memories leads to the selective disruption of the corresponding
memory traces or through memory interference the other learned memories are disrupted
as well. In this thesis, using a modified cheeseboard paradigm and a closed-loop
recording setup with feedback optogenetic stimulation, I examined how the disruption
of the reactivation of specific spiking patterns affects consolidation of the
corresponding memory traces. To obtain multiple distinctive memories, animals
had to perform a spatial task in two distinct cheeseboard environments and the
reactivation of spiking patterns associated with one of the environments (target)
was disrupted after learning during four hours rest period using a real-time decoding
method. This real-time decoding method was capable of selectively affecting the
firing rates and cofiring correlations of the target environment-encoding cells.
The selective disruption led to behavioural impairment in the memory tests after
the rest periods in the target environment but not in the other undisrupted control
environment. In addition, the map of the target environment was less stable in
the impaired memory tests compared to the learning session before than the map
of the control environment. However, when the animal relearned the task, the same
map recurred in the target environment that was present during learning before
the disruption. Altogether my work demonstrated that the reactivation content
is important: assembly-related disruption of reactivation can lead to a selective
memory impairment and deficiency in map stability. These findings indeed suggest
that reactivated assembly patterns reflect processes associated with the consolidation
of memory traces. '
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Igor
full_name: Gridchyn, Igor
id: 4B60654C-F248-11E8-B48F-1D18A9856A87
last_name: Gridchyn
orcid: 0000-0002-1807-1929
citation:
ama: Gridchyn I. Reactivation content is important for consolidation of spatial
memory. 2018. doi:10.15479/AT:ISTA:th_1042
apa: Gridchyn, I. (2018). Reactivation content is important for consolidation
of spatial memory. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:th_1042
chicago: Gridchyn, Igor. “Reactivation Content Is Important for Consolidation of
Spatial Memory.” Institute of Science and Technology Austria, 2018. https://doi.org/10.15479/AT:ISTA:th_1042.
ieee: I. Gridchyn, “Reactivation content is important for consolidation of spatial
memory,” Institute of Science and Technology Austria, 2018.
ista: Gridchyn I. 2018. Reactivation content is important for consolidation of spatial
memory. Institute of Science and Technology Austria.
mla: Gridchyn, Igor. Reactivation Content Is Important for Consolidation of Spatial
Memory. Institute of Science and Technology Austria, 2018, doi:10.15479/AT:ISTA:th_1042.
short: I. Gridchyn, Reactivation Content Is Important for Consolidation of Spatial
Memory, Institute of Science and Technology Austria, 2018.
date_created: 2018-12-11T11:44:21Z
date_published: 2018-08-27T00:00:00Z
date_updated: 2023-09-07T12:42:44Z
day: '27'
ddc:
- '573'
degree_awarded: PhD
department:
- _id: JoCs
doi: 10.15479/AT:ISTA:th_1042
file:
- access_level: closed
checksum: 7db4415e435590fa33542c7b0a0321d7
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: dernst
date_created: 2019-04-08T13:36:01Z
date_updated: 2021-02-11T23:30:22Z
embargo_to: open_access
file_id: '6236'
file_name: 2018_Thesis_Gridchyn_source.docx
file_size: 7666687
relation: source_file
- access_level: open_access
checksum: f96f3fe8979f7b1e6db6acaca962b10c
content_type: application/pdf
creator: dernst
date_created: 2019-04-08T13:36:01Z
date_updated: 2021-02-11T11:17:18Z
embargo: 2019-08-29
file_id: '6237'
file_name: 2018_Thesis_Gridchyn.pdf
file_size: 6034153
relation: main_file
file_date_updated: 2021-02-11T23:30:22Z
has_accepted_license: '1'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: '104'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '8006'
pubrep_id: '1042'
status: public
supervisor:
- first_name: Jozsef L
full_name: Csicsvari, Jozsef L
id: 3FA14672-F248-11E8-B48F-1D18A9856A87
last_name: Csicsvari
orcid: 0000-0002-5193-4036
title: Reactivation content is important for consolidation of spatial memory
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '49'
abstract:
- lang: eng
text: Nowadays, quantum computation is receiving more and more attention as an alternative
to the classical way of computing. For realizing a quantum computer, different
devices are investigated as potential quantum bits. In this thesis, the focus
is on Ge hut wires, which turned out to be promising candidates for implementing
hole spin quantum bits. The advantages of Ge as a material system are the low
hyperfine interaction for holes and the strong spin orbit coupling, as well as
the compatibility with the highly developed CMOS processes in industry. In addition,
Ge can also be isotopically purified which is expected to boost the spin coherence
times. The strong spin orbit interaction for holes in Ge on the one hand enables
the full electrical control of the quantum bit and on the other hand should allow
short spin manipulation times. Starting with a bare Si wafer, this work covers
the entire process reaching from growth over the fabrication and characterization
of hut wire devices up to the demonstration of hole spin resonance. From experiments
with single quantum dots, a large g-factor anisotropy between the in-plane and
the out-of-plane direction was found. A comparison to a theoretical model unveiled
the heavy-hole character of the lowest energy states. The second part of the thesis
addresses double quantum dot devices, which were realized by adding two gate electrodes
to a hut wire. In such devices, Pauli spin blockade was observed, which can serve
as a read-out mechanism for spin quantum bits. Applying oscillating electric fields
in spin blockade allowed the demonstration of continuous spin rotations and the
extraction of a lower bound for the spin dephasing time. Despite the strong spin
orbit coupling in Ge, the obtained value for the dephasing time is comparable
to what has been recently reported for holes in Si. All in all, the presented
results point out the high potential of Ge hut wires as a platform for long-lived,
fast and fully electrically tunable hole spin quantum bits.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Hannes
full_name: Watzinger, Hannes
id: 35DF8E50-F248-11E8-B48F-1D18A9856A87
last_name: Watzinger
citation:
ama: Watzinger H. Ge hut wires - from growth to hole spin resonance. 2018. doi:10.15479/AT:ISTA:th_1033
apa: Watzinger, H. (2018). Ge hut wires - from growth to hole spin resonance.
Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:th_1033
chicago: Watzinger, Hannes. “Ge Hut Wires - from Growth to Hole Spin Resonance.”
Institute of Science and Technology Austria, 2018. https://doi.org/10.15479/AT:ISTA:th_1033.
ieee: H. Watzinger, “Ge hut wires - from growth to hole spin resonance,” Institute
of Science and Technology Austria, 2018.
ista: Watzinger H. 2018. Ge hut wires - from growth to hole spin resonance. Institute
of Science and Technology Austria.
mla: Watzinger, Hannes. Ge Hut Wires - from Growth to Hole Spin Resonance.
Institute of Science and Technology Austria, 2018, doi:10.15479/AT:ISTA:th_1033.
short: H. Watzinger, Ge Hut Wires - from Growth to Hole Spin Resonance, Institute
of Science and Technology Austria, 2018.
date_created: 2018-12-11T11:44:21Z
date_published: 2018-07-30T00:00:00Z
date_updated: 2023-09-07T12:27:43Z
day: '30'
ddc:
- '530'
degree_awarded: PhD
department:
- _id: GeKa
doi: 10.15479/AT:ISTA:th_1033
file:
- access_level: open_access
checksum: b653b5216251f938ddbeafd1de88667c
content_type: application/pdf
creator: dernst
date_created: 2019-04-09T07:13:28Z
date_updated: 2020-07-14T12:46:35Z
file_id: '6249'
file_name: 2018_Thesis_Watzinger.pdf
file_size: 85539748
relation: main_file
- access_level: closed
checksum: 39bcf8de7ac5b1bb516b11ce2f966785
content_type: application/zip
creator: dernst
date_created: 2019-04-09T07:13:27Z
date_updated: 2020-07-14T12:46:35Z
file_id: '6250'
file_name: 2018_Thesis_Watzinger_source.zip
file_size: 21830697
relation: source_file
file_date_updated: 2020-07-14T12:46:35Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '77'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '8005'
pubrep_id: '1033'
status: public
supervisor:
- first_name: Georgios
full_name: Katsaros, Georgios
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
orcid: 0000-0001-8342-202X
title: Ge hut wires - from growth to hole spin resonance
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '50'
abstract:
- lang: eng
text: The Wnt/planar cell polarity (Wnt/PCP) pathway determines planar polarity
of epithelial cells in both vertebrates and invertebrates. The role that Wnt/PCP
signaling plays in mesenchymal contexts, however, is only poorly understood. While
previous studies have demonstrated the capacity of Wnt/PCP signaling to polarize
and guide directed migration of mesenchymal cells, it remains unclear whether
endogenous Wnt/PCP signaling performs these functions instructively, as it does
in epithelial cells. Here we developed a light-switchable version of the Wnt/PCP
receptor Frizzled 7 (Fz7) to unambiguously distinguish between an instructive
and a permissive role of Wnt/PCP signaling for the directional collective migration
of mesendoderm progenitor cells during zebrafish gastrulation. We show that prechordal
plate (ppl) cell migration is defective in maternal-zygotic fz7a and fz7b (MZ
fz7a,b) double mutant embryos, and that Fz7 functions cell-autonomously in this
process by promoting ppl cell protrusion formation and directed migration. We
further show that local activation of Fz7 can direct ppl cell migration both in
vitro and in vivo. Surprisingly, however, uniform Fz7 activation is sufficient
to fully rescue the ppl cell migration defect in MZ fz7a,b mutant embryos, indicating
that Wnt/PCP signaling functions permissively rather than instructively in directed
mesendoderm cell migration during zebrafish gastrulation.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Daniel
full_name: Capek, Daniel
id: 31C42484-F248-11E8-B48F-1D18A9856A87
last_name: Capek
orcid: 0000-0001-5199-9940
citation:
ama: Capek D. Optogenetic Frizzled 7 reveals a permissive function of Wnt/PCP signaling
in directed mesenchymal cell migration. 2018. doi:10.15479/AT:ISTA:TH_1031
apa: Capek, D. (2018). Optogenetic Frizzled 7 reveals a permissive function of
Wnt/PCP signaling in directed mesenchymal cell migration. Institute of Science
and Technology Austria. https://doi.org/10.15479/AT:ISTA:TH_1031
chicago: Capek, Daniel. “Optogenetic Frizzled 7 Reveals a Permissive Function of
Wnt/PCP Signaling in Directed Mesenchymal Cell Migration.” Institute of Science
and Technology Austria, 2018. https://doi.org/10.15479/AT:ISTA:TH_1031.
ieee: D. Capek, “Optogenetic Frizzled 7 reveals a permissive function of Wnt/PCP
signaling in directed mesenchymal cell migration,” Institute of Science and Technology
Austria, 2018.
ista: Capek D. 2018. Optogenetic Frizzled 7 reveals a permissive function of Wnt/PCP
signaling in directed mesenchymal cell migration. Institute of Science and Technology
Austria.
mla: Capek, Daniel. Optogenetic Frizzled 7 Reveals a Permissive Function of Wnt/PCP
Signaling in Directed Mesenchymal Cell Migration. Institute of Science and
Technology Austria, 2018, doi:10.15479/AT:ISTA:TH_1031.
short: D. Capek, Optogenetic Frizzled 7 Reveals a Permissive Function of Wnt/PCP
Signaling in Directed Mesenchymal Cell Migration, Institute of Science and Technology
Austria, 2018.
date_created: 2018-12-11T11:44:21Z
date_published: 2018-06-22T00:00:00Z
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doi: 10.15479/AT:ISTA:TH_1031
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publication_identifier:
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publisher: Institute of Science and Technology Austria
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record:
- id: '1100'
relation: part_of_dissertation
status: public
- id: '661'
relation: part_of_dissertation
status: public
- id: '676'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
title: Optogenetic Frizzled 7 reveals a permissive function of Wnt/PCP signaling in
directed mesenchymal cell migration
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '503'
abstract:
- lang: eng
text: Buffers are essential for diluting bacterial cultures for flow cytometry analysis
in order to study bacterial physiology and gene expression parameters based on
fluorescence signals. Using a variety of constitutively expressed fluorescent
proteins in Escherichia coli K-12 strain MG1655, we found strong artifactual changes
in fluorescence levels after dilution into the commonly used flow cytometry buffer
phosphate-buffered saline (PBS) and two other buffer solutions, Tris-HCl and M9
salts. These changes appeared very rapidly after dilution, and were linked to
increased membrane permeability and loss in cell viability. We observed buffer-related
effects in several different E. coli strains, K-12, C and W, but not E. coli B,
which can be partially explained by differences in lipopolysaccharide (LPS) and
outer membrane composition. Supplementing the buffers with divalent cations responsible
for outer membrane stability, Mg2+ and Ca2+, preserved fluorescence signals, membrane
integrity and viability of E. coli. Thus, stabilizing the bacterial outer membrane
is essential for precise and unbiased measurements of fluorescence parameters
using flow cytometry.
acknowledged_ssus:
- _id: Bio
acknowledgement: "We thank R Chait and M Lagator for sharing Bacillus subtilis CR_Y1
and pZS*_2R-cIPtet-Venus-Prm, respectively. We are grateful to T Pilizota and all
members of the Guet lab for critically reading the manuscript. We also thank the
Bioimaging facility at IST Austria for assistance using the FACSAria III system.\r\n\r\n"
article_processing_charge: No
author:
- first_name: Kathrin
full_name: Tomasek, Kathrin
id: 3AEC8556-F248-11E8-B48F-1D18A9856A87
last_name: Tomasek
orcid: 0000-0003-3768-877X
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Tomasek K, Bergmiller T, Guet CC. Lack of cations in flow cytometry buffers
affect fluorescence signals by reducing membrane stability and viability of Escherichia
coli strains. Journal of Biotechnology. 2018;268:40-52. doi:10.1016/j.jbiotec.2018.01.008
apa: Tomasek, K., Bergmiller, T., & Guet, C. C. (2018). Lack of cations in flow
cytometry buffers affect fluorescence signals by reducing membrane stability and
viability of Escherichia coli strains. Journal of Biotechnology. Elsevier.
https://doi.org/10.1016/j.jbiotec.2018.01.008
chicago: Tomasek, Kathrin, Tobias Bergmiller, and Calin C Guet. “Lack of Cations
in Flow Cytometry Buffers Affect Fluorescence Signals by Reducing Membrane Stability
and Viability of Escherichia Coli Strains.” Journal of Biotechnology. Elsevier,
2018. https://doi.org/10.1016/j.jbiotec.2018.01.008.
ieee: K. Tomasek, T. Bergmiller, and C. C. Guet, “Lack of cations in flow cytometry
buffers affect fluorescence signals by reducing membrane stability and viability
of Escherichia coli strains,” Journal of Biotechnology, vol. 268. Elsevier,
pp. 40–52, 2018.
ista: Tomasek K, Bergmiller T, Guet CC. 2018. Lack of cations in flow cytometry
buffers affect fluorescence signals by reducing membrane stability and viability
of Escherichia coli strains. Journal of Biotechnology. 268, 40–52.
mla: Tomasek, Kathrin, et al. “Lack of Cations in Flow Cytometry Buffers Affect
Fluorescence Signals by Reducing Membrane Stability and Viability of Escherichia
Coli Strains.” Journal of Biotechnology, vol. 268, Elsevier, 2018, pp.
40–52, doi:10.1016/j.jbiotec.2018.01.008.
short: K. Tomasek, T. Bergmiller, C.C. Guet, Journal of Biotechnology 268 (2018)
40–52.
date_created: 2018-12-11T11:46:50Z
date_published: 2018-02-20T00:00:00Z
date_updated: 2023-09-13T08:24:51Z
day: '20'
department:
- _id: CaGu
doi: 10.1016/j.jbiotec.2018.01.008
external_id:
isi:
- '000425715100006'
intvolume: ' 268'
isi: 1
language:
- iso: eng
month: '02'
oa_version: None
page: 40 - 52
publication: Journal of Biotechnology
publication_status: published
publisher: Elsevier
publist_id: '7317'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lack of cations in flow cytometry buffers affect fluorescence signals by reducing
membrane stability and viability of Escherichia coli strains
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 268
year: '2018'
...
---
_id: '51'
abstract:
- lang: eng
text: Asymmetries have long been known about in the central nervous system. From
gross anatomical differences, such as the presence of the parapineal organ in
only one hemisphere of the developing zebrafish, to more subtle differences in
activity between both hemispheres, as seen in freely roaming animals or human
participants under PET and fMRI imaging analysis. The presence of asymmetries
has been demonstrated to have huge behavioural implications, with their disruption
often leading to the generation of neurological disorders, memory problems, changes
in personality, and in an organism's health and well-being. For my Ph.D. work
I aimed to tackle two important avenues of research. The first being the process
of input-side dependency in the hippocampus, with the goal of finding a key gene
responsible for its development (Gene X). The second project was to do with experience-induced
laterality formation in the hippocampus. Specifically, how laterality in the synapse
density of the CA1 stratum radiatum (s.r.) could be induced purely through environmental
enrichment. Through unilateral tracer injections into the CA3, I was able to selectively
measure the properties of synapses within the CA1 and investigate how they differed
based upon which hemisphere the presynaptic neurone originated. Having found the
existence of a previously unreported reversed (left-isomerism) i.v. mutant, through
morpholocal examination of labelled terminals in the CA1 s.r., I aimed to elucidate
a key gene responsible for the process of left or right determination of inputs
to the CA1 s.r.. This work relates to the previous finding of input-side dependent
asymmetry in the wild-type rodent, where the origin of the projecting neurone
to the CA1 will determine the morphology of a synapse, to a greater degree than
the hemisphere in which the projection terminates. Using left- and right-isomerism
i.v. mice, in combination with whole genome sequence analysis, I highlight Ena/VASP-like
(Evl) as a potential target for Gene X. In relation to this topic, I also highlight
my work in the recently published paper of how knockout of PirB can lead to a
lack of input-side dependency in the murine hippocampus. For the second question,
I show that the environmental enrichment paradigm will lead to an asymmetry in
the synapse densities in the hippocampus of mice. I also highlight that the nature
of the enrichment is of less consequence than the process of enrichment itself.
I demonstrate that the CA3 region will dramatically alter its projection targets,
in relation to environmental stimulation, with the asymmetry in synaptic density,
caused by enrichment, relying heavily on commissural fibres. I also highlight
the vital importance of input-side dependent asymmetry, as a necessary component
of experience-dependent laterality formation in the CA1 s.r.. However, my results
suggest that it isn't the only cause, as there appears to be a CA1 dependent mechanism
also at play. Upon further investigation, I highlight the significant, and highly
important, finding that the changes seen in the CA1 s.r. were predominantly caused
through projections from the left-CA3, with the right-CA3 having less involvement
in this mechanism.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Matthew J
full_name: Case, Matthew J
id: 44B7CA5A-F248-11E8-B48F-1D18A9856A87
last_name: Case
citation:
ama: 'Case MJ. From the left to the right: A tale of asymmetries, environments,
and hippocampal development. 2018. doi:10.15479/AT:ISTA:th_1032'
apa: 'Case, M. J. (2018). From the left to the right: A tale of asymmetries,
environments, and hippocampal development. Institute of Science and Technology
Austria. https://doi.org/10.15479/AT:ISTA:th_1032'
chicago: 'Case, Matthew J. “From the Left to the Right: A Tale of Asymmetries, Environments,
and Hippocampal Development.” Institute of Science and Technology Austria, 2018.
https://doi.org/10.15479/AT:ISTA:th_1032.'
ieee: 'M. J. Case, “From the left to the right: A tale of asymmetries, environments,
and hippocampal development,” Institute of Science and Technology Austria, 2018.'
ista: 'Case MJ. 2018. From the left to the right: A tale of asymmetries, environments,
and hippocampal development. Institute of Science and Technology Austria.'
mla: 'Case, Matthew J. From the Left to the Right: A Tale of Asymmetries, Environments,
and Hippocampal Development. Institute of Science and Technology Austria,
2018, doi:10.15479/AT:ISTA:th_1032.'
short: 'M.J. Case, From the Left to the Right: A Tale of Asymmetries, Environments,
and Hippocampal Development, Institute of Science and Technology Austria, 2018.'
date_created: 2018-12-11T11:44:22Z
date_published: 2018-06-27T00:00:00Z
date_updated: 2023-09-07T12:39:22Z
day: '27'
ddc:
- '571'
- '576'
degree_awarded: PhD
department:
- _id: RySh
doi: 10.15479/AT:ISTA:th_1032
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page: '186'
publication_identifier:
issn:
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publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '8003'
pubrep_id: '1032'
related_material:
record:
- id: '682'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
title: 'From the left to the right: A tale of asymmetries, environments, and hippocampal
development'
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '519'
abstract:
- lang: eng
text: 'This study treats with the influence of a symmetry-breaking transversal magnetic
field on the nonlinear dynamics of ferrofluidic Taylor-Couette flow – flow confined
between two concentric independently rotating cylinders. We detected alternating
‘flip’ solutions which are flow states featuring typical characteristics of slow-fast-dynamics
in dynamical systems. The flip corresponds to a temporal change in the axial wavenumber
and we find them to appear either as pure 2-fold axisymmetric (due to the symmetry-breaking
nature of the applied transversal magnetic field) or involving non-axisymmetric,
helical modes in its interim solution. The latter ones show features of typical
ribbon solutions. In any case the flip solutions have a preferential first axial
wavenumber which corresponds to the more stable state (slow dynamics) and second
axial wavenumber, corresponding to the short appearing more unstable state (fast
dynamics). However, in both cases the flip time grows exponential with increasing
the magnetic field strength before the flip solutions, living on 2-tori invariant
manifolds, cease to exist, with lifetime going to infinity. Further we show that
ferrofluidic flow turbulence differ from the classical, ordinary (usually at high
Reynolds number) turbulence. The applied magnetic field hinders the free motion
of ferrofluid partials and therefore smoothen typical turbulent quantities and
features so that speaking of mildly chaotic dynamics seems to be a more appropriate
expression for the observed motion. '
acknowledgement: S.Altmeyer is a Serra Húnter Fellow
article_processing_charge: No
article_type: original
author:
- first_name: Sebastian
full_name: Altmeyer, Sebastian
id: 2EE67FDC-F248-11E8-B48F-1D18A9856A87
last_name: Altmeyer
orcid: 0000-0001-5964-0203
citation:
ama: Altmeyer S. Non-linear dynamics and alternating ‘flip’ solutions in ferrofluidic
Taylor-Couette flow. Journal of Magnetism and Magnetic Materials. 2018;452:427-441.
doi:10.1016/j.jmmm.2017.12.073
apa: Altmeyer, S. (2018). Non-linear dynamics and alternating ‘flip’ solutions in
ferrofluidic Taylor-Couette flow. Journal of Magnetism and Magnetic Materials.
Elsevier. https://doi.org/10.1016/j.jmmm.2017.12.073
chicago: Altmeyer, Sebastian. “Non-Linear Dynamics and Alternating ‘Flip’ Solutions
in Ferrofluidic Taylor-Couette Flow.” Journal of Magnetism and Magnetic Materials.
Elsevier, 2018. https://doi.org/10.1016/j.jmmm.2017.12.073.
ieee: S. Altmeyer, “Non-linear dynamics and alternating ‘flip’ solutions in ferrofluidic
Taylor-Couette flow,” Journal of Magnetism and Magnetic Materials, vol.
452. Elsevier, pp. 427–441, 2018.
ista: Altmeyer S. 2018. Non-linear dynamics and alternating ‘flip’ solutions in
ferrofluidic Taylor-Couette flow. Journal of Magnetism and Magnetic Materials.
452, 427–441.
mla: Altmeyer, Sebastian. “Non-Linear Dynamics and Alternating ‘Flip’ Solutions
in Ferrofluidic Taylor-Couette Flow.” Journal of Magnetism and Magnetic Materials,
vol. 452, Elsevier, 2018, pp. 427–41, doi:10.1016/j.jmmm.2017.12.073.
short: S. Altmeyer, Journal of Magnetism and Magnetic Materials 452 (2018) 427–441.
date_created: 2018-12-11T11:46:56Z
date_published: 2018-04-15T00:00:00Z
date_updated: 2023-09-13T09:03:44Z
day: '15'
ddc:
- '530'
department:
- _id: BjHo
doi: 10.1016/j.jmmm.2017.12.073
external_id:
isi:
- '000425547700061'
file:
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checksum: 431f5cd4a628d7ca21161f82b14ccb4f
content_type: application/pdf
creator: dernst
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file_name: 2018_Magnetism_Altmeyer.pdf
file_size: 17309535
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has_accepted_license: '1'
intvolume: ' 452'
isi: 1
language:
- iso: eng
month: '04'
oa: 1
oa_version: Submitted Version
page: 427 - 441
publication: Journal of Magnetism and Magnetic Materials
publication_status: published
publisher: Elsevier
publist_id: '7297'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Non-linear dynamics and alternating ‘flip’ solutions in ferrofluidic Taylor-Couette
flow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 452
year: '2018'
...