---
_id: '8708'
abstract:
- lang: eng
text: The Mytilus complex of marine mussel species forms a mosaic of hybrid zones,
found across temperate regions of the globe. This allows us to study ‘replicated’
instances of secondary contact between closely related species. Previous work
on this complex has shown that local introgression is both widespread and highly
heterogeneous, and has identified SNPs that are outliers of differentiation between
lineages. Here, we developed an ancestry‐informative panel of such SNPs. We then
compared their frequencies in newly sampled populations, including samples from
within the hybrid zones, and parental populations at different distances from
the contact. Results show that close to the hybrid zones, some outlier loci are
near to fixation for the heterospecific allele, suggesting enhanced local introgression,
or the local sweep of a shared ancestral allele. Conversely, genomic cline analyses,
treating local parental populations as the reference, reveal a globally high concordance
among loci, albeit with a few signals of asymmetric introgression. Enhanced local
introgression at specific loci is consistent with the early transfer of adaptive
variants after contact, possibly including asymmetric bi‐stable variants (Dobzhansky‐Muller
incompatibilities), or haplotypes loaded with fewer deleterious mutations. Having
escaped one barrier, however, these variants can be trapped or delayed at the
next barrier, confining the introgression locally. These results shed light on
the decay of species barriers during phases of contact.
acknowledgement: Data used in this work were partly produced through the genotyping
and sequencing facilities of ISEM and LabEx CeMEB, an ANR ‘Investissements d'avenir’
program (ANR‐10‐LABX‐04‐01) This project benefited from the Montpellier Bioinformatics
Biodiversity platform supported by the LabEx CeMEB. We thank Norah Saarman, Grant
Pogson, Célia Gosset and Pierre‐Alexandre Gagnaire for providing samples. This work
was funded by a Languedoc‐Roussillon ‘Chercheur(se)s d'Avenir’ grant (Connect7 project).
P. Strelkov was supported by the Russian Science Foundation project 19‐74‐20024.
This is article 2020‐240 of Institut des Sciences de l'Evolution de Montpellier.
article_processing_charge: No
article_type: original
author:
- first_name: Alexis
full_name: Simon, Alexis
last_name: Simon
- first_name: Christelle
full_name: Fraisse, Christelle
id: 32DF5794-F248-11E8-B48F-1D18A9856A87
last_name: Fraisse
orcid: 0000-0001-8441-5075
- first_name: Tahani
full_name: El Ayari, Tahani
last_name: El Ayari
- first_name: Cathy
full_name: Liautard‐Haag, Cathy
last_name: Liautard‐Haag
- first_name: Petr
full_name: Strelkov, Petr
last_name: Strelkov
- first_name: John J
full_name: Welch, John J
last_name: Welch
- first_name: Nicolas
full_name: Bierne, Nicolas
last_name: Bierne
citation:
ama: Simon A, Fraisse C, El Ayari T, et al. How do species barriers decay? Concordance
and local introgression in mosaic hybrid zones of mussels. Journal of Evolutionary
Biology. 2021;34(1):208-223. doi:10.1111/jeb.13709
apa: Simon, A., Fraisse, C., El Ayari, T., Liautard‐Haag, C., Strelkov, P., Welch,
J. J., & Bierne, N. (2021). How do species barriers decay? Concordance and
local introgression in mosaic hybrid zones of mussels. Journal of Evolutionary
Biology. Wiley. https://doi.org/10.1111/jeb.13709
chicago: Simon, Alexis, Christelle Fraisse, Tahani El Ayari, Cathy Liautard‐Haag,
Petr Strelkov, John J Welch, and Nicolas Bierne. “How Do Species Barriers Decay?
Concordance and Local Introgression in Mosaic Hybrid Zones of Mussels.” Journal
of Evolutionary Biology. Wiley, 2021. https://doi.org/10.1111/jeb.13709.
ieee: A. Simon et al., “How do species barriers decay? Concordance and local
introgression in mosaic hybrid zones of mussels,” Journal of Evolutionary Biology,
vol. 34, no. 1. Wiley, pp. 208–223, 2021.
ista: Simon A, Fraisse C, El Ayari T, Liautard‐Haag C, Strelkov P, Welch JJ, Bierne
N. 2021. How do species barriers decay? Concordance and local introgression in
mosaic hybrid zones of mussels. Journal of Evolutionary Biology. 34(1), 208–223.
mla: Simon, Alexis, et al. “How Do Species Barriers Decay? Concordance and Local
Introgression in Mosaic Hybrid Zones of Mussels.” Journal of Evolutionary Biology,
vol. 34, no. 1, Wiley, 2021, pp. 208–23, doi:10.1111/jeb.13709.
short: A. Simon, C. Fraisse, T. El Ayari, C. Liautard‐Haag, P. Strelkov, J.J. Welch,
N. Bierne, Journal of Evolutionary Biology 34 (2021) 208–223.
date_created: 2020-10-25T23:01:20Z
date_published: 2021-01-01T00:00:00Z
date_updated: 2023-08-04T11:04:11Z
day: '01'
department:
- _id: BeVi
- _id: NiBa
doi: 10.1111/jeb.13709
external_id:
isi:
- '000579599700001'
pmid:
- '33045123'
intvolume: ' 34'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/818559
month: '01'
oa: 1
oa_version: Preprint
page: 208-223
pmid: 1
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- '14209101'
issn:
- 1010061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '13073'
relation: research_data
status: public
scopus_import: '1'
status: public
title: How do species barriers decay? Concordance and local introgression in mosaic
hybrid zones of mussels
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 34
year: '2021'
...
---
_id: '8928'
abstract:
- lang: eng
text: Domestication is a human‐induced selection process that imprints the genomes
of domesticated populations over a short evolutionary time scale and that occurs
in a given demographic context. Reconstructing historical gene flow, effective
population size changes and their timing is therefore of fundamental interest
to understand how plant demography and human selection jointly shape genomic divergence
during domestication. Yet, the comparison under a single statistical framework
of independent domestication histories across different crop species has been
little evaluated so far. Thus, it is unclear whether domestication leads to convergent
demographic changes that similarly affect crop genomes. To address this question,
we used existing and new transcriptome data on three crop species of Solanaceae
(eggplant, pepper and tomato), together with their close wild relatives. We fitted
twelve demographic models of increasing complexity on the unfolded joint allele
frequency spectrum for each wild/crop pair, and we found evidence for both shared
and species‐specific demographic processes between species. A convergent history
of domestication with gene flow was inferred for all three species, along with
evidence of strong reduction in the effective population size during the cultivation
stage of tomato and pepper. The absence of any reduction in size of the crop in
eggplant stands out from the classical view of the domestication process; as does
the existence of a “protracted period” of management before cultivation. Our results
also suggest divergent management strategies of modern cultivars among species
as their current demography substantially differs. Finally, the timing of domestication
is species‐specific and supported by the few historical records available.
acknowledgement: This work was supported by the EU Marie Curie Career Integration
grant (FP7‐PEOPLE‐2011‐CIG grant agreement PCIG10‐GA‐2011‐304164) attributed to
CS. SA was supported by a PhD fellowship from the French Région PACA and the Plant
Breeding division of INRA, in partnership with Gautier Semences. CF was supported
by an Austrian Science Foundation FWF grant (Project M 2463‐B29). Authors thank
Mathilde Causse and Beatriz Vicoso for their team leading. Thanks to the Italian
Eggplant Genome Consortium, which includes the DISAFA, Plant Genetics and Breeding
(University of Torino), the Biotechnology Department (University of Verona), the
CREA‐ORL in Montanaso Lombardo (LO) and the ENEA in Rome for providing access to
the eggplant genome reference. Thanks to CRB‐lég ( https://www6.paca.inra.fr/gafl_eng/Vegetables-GRC
) for managing and providing the genetic resources, to Marie‐Christine Daunay and
Alain Palloix (INRA UR1052) for assistance in choosing the biological material used,
to Muriel Latreille and Sylvain Santoni from the UMR AGAP (INRA Montpellier, France)
for their help with RNAseq library preparation, to Jean‐Paul Bouchet and Jacques
Lagnel (INRA UR1052) for their Bioinformatics assistance.
article_processing_charge: No
article_type: original
author:
- first_name: Stéphanie
full_name: Arnoux, Stéphanie
last_name: Arnoux
- first_name: Christelle
full_name: Fraisse, Christelle
id: 32DF5794-F248-11E8-B48F-1D18A9856A87
last_name: Fraisse
orcid: 0000-0001-8441-5075
- first_name: Christopher
full_name: Sauvage, Christopher
last_name: Sauvage
citation:
ama: Arnoux S, Fraisse C, Sauvage C. Genomic inference of complex domestication
histories in three Solanaceae species. Journal of Evolutionary Biology.
2021;34(2):270-283. doi:10.1111/jeb.13723
apa: Arnoux, S., Fraisse, C., & Sauvage, C. (2021). Genomic inference of complex
domestication histories in three Solanaceae species. Journal of Evolutionary
Biology. Wiley. https://doi.org/10.1111/jeb.13723
chicago: Arnoux, Stéphanie, Christelle Fraisse, and Christopher Sauvage. “Genomic
Inference of Complex Domestication Histories in Three Solanaceae Species.” Journal
of Evolutionary Biology. Wiley, 2021. https://doi.org/10.1111/jeb.13723.
ieee: S. Arnoux, C. Fraisse, and C. Sauvage, “Genomic inference of complex domestication
histories in three Solanaceae species,” Journal of Evolutionary Biology,
vol. 34, no. 2. Wiley, pp. 270–283, 2021.
ista: Arnoux S, Fraisse C, Sauvage C. 2021. Genomic inference of complex domestication
histories in three Solanaceae species. Journal of Evolutionary Biology. 34(2),
270–283.
mla: Arnoux, Stéphanie, et al. “Genomic Inference of Complex Domestication Histories
in Three Solanaceae Species.” Journal of Evolutionary Biology, vol. 34,
no. 2, Wiley, 2021, pp. 270–83, doi:10.1111/jeb.13723.
short: S. Arnoux, C. Fraisse, C. Sauvage, Journal of Evolutionary Biology 34 (2021)
270–283.
date_created: 2020-12-06T23:01:16Z
date_published: 2021-02-01T00:00:00Z
date_updated: 2023-08-04T11:19:26Z
day: '01'
department:
- _id: NiBa
doi: 10.1111/jeb.13723
external_id:
isi:
- '000587769700001'
pmid:
- '33107098'
intvolume: ' 34'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/jeb.13723
month: '02'
oa: 1
oa_version: Published Version
page: 270-283
pmid: 1
project:
- _id: 2662AADE-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02463
name: Sex chromosomes and species barriers
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- '14209101'
issn:
- 1010061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '13065'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Genomic inference of complex domestication histories in three Solanaceae species
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 34
year: '2021'
...
---
_id: '9100'
abstract:
- lang: eng
text: 'Marine environments are inhabited by a broad representation of the tree of
life, yet our understanding of speciation in marine ecosystems is extremely limited
compared with terrestrial and freshwater environments. Developing a more comprehensive
picture of speciation in marine environments requires that we ''dive under the
surface'' by studying a wider range of taxa and ecosystems is necessary for a
more comprehensive picture of speciation. Although studying marine evolutionary
processes is often challenging, recent technological advances in different fields,
from maritime engineering to genomics, are making it increasingly possible to
study speciation of marine life forms across diverse ecosystems and taxa. Motivated
by recent research in the field, including the 14 contributions in this issue,
we highlight and discuss six axes of research that we think will deepen our understanding
of speciation in the marine realm: (a) study a broader range of marine environments
and organisms; (b) identify the reproductive barriers driving speciation between
marine taxa; (c) understand the role of different genomic architectures underlying
reproductive isolation; (d) infer the evolutionary history of divergence using
model‐based approaches; (e) study patterns of hybridization and introgression
between marine taxa; and (f) implement highly interdisciplinary, collaborative
research programmes. In outlining these goals, we hope to inspire researchers
to continue filling this critical knowledge gap surrounding the origins of marine
biodiversity.'
acknowledgement: "We would like to thank all the participants in the speciation symposium
of the Marine Evolution Conference in Sweden for the interesting discussions and
to all the contributors to this special\r\nissue. We thank Nicolas Bierne and Wolf
Blanckenhorn (reviewer and editor, respectively) for valuable suggestions during
the revision of the manuscript, and Roger K. Butlin and Anja M. Westram for very
helpful comments on a previous draft. We would also like to thank Wolf Blanckenhorn
and Nicola Cook, the Editor in Chief and the Managing Editor of the Journal of Evolutionary
Biology, respectively, for the encouragement and support in putting together this
special issue, and to all reviewers involved. RF was financed by the European Union's
Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie
Grant Agreement Number 706376 and is currently financed by the FEDER Funds through
the Operational Competitiveness Factors Program COMPETE and by National Funds through
the Foundation for Science and Technology (FCT) within the scope of the project
‘Hybrabbid' (PTDC/BIA-EVL/30628/2017-POCI-01-0145-FEDER-030628). KJ was funded by
the Swedish\r\nResearch Council, VR. SS was supported by NERC and ERC funding awarded
to Roger K. Butlin."
article_processing_charge: No
article_type: original
author:
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
citation:
ama: 'Faria R, Johannesson K, Stankowski S. Speciation in marine environments: Diving
under the surface. Journal of Evolutionary Biology. 2021;34(1):4-15. doi:10.1111/jeb.13756'
apa: 'Faria, R., Johannesson, K., & Stankowski, S. (2021). Speciation in marine
environments: Diving under the surface. Journal of Evolutionary Biology.
Wiley. https://doi.org/10.1111/jeb.13756'
chicago: 'Faria, Rui, Kerstin Johannesson, and Sean Stankowski. “Speciation in Marine
Environments: Diving under the Surface.” Journal of Evolutionary Biology.
Wiley, 2021. https://doi.org/10.1111/jeb.13756.'
ieee: 'R. Faria, K. Johannesson, and S. Stankowski, “Speciation in marine environments:
Diving under the surface,” Journal of Evolutionary Biology, vol. 34, no.
1. Wiley, pp. 4–15, 2021.'
ista: 'Faria R, Johannesson K, Stankowski S. 2021. Speciation in marine environments:
Diving under the surface. Journal of Evolutionary Biology. 34(1), 4–15.'
mla: 'Faria, Rui, et al. “Speciation in Marine Environments: Diving under the Surface.”
Journal of Evolutionary Biology, vol. 34, no. 1, Wiley, 2021, pp. 4–15,
doi:10.1111/jeb.13756.'
short: R. Faria, K. Johannesson, S. Stankowski, Journal of Evolutionary Biology
34 (2021) 4–15.
date_created: 2021-02-07T23:01:13Z
date_published: 2021-01-18T00:00:00Z
date_updated: 2023-08-07T13:42:08Z
day: '18'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/jeb.13756
external_id:
isi:
- '000608367500001'
file:
- access_level: open_access
checksum: 5755856a5368d4b4cdd6fad5ab27f4d1
content_type: application/pdf
creator: dernst
date_created: 2021-02-09T09:04:02Z
date_updated: 2021-02-09T09:04:02Z
file_id: '9108'
file_name: 2021_JourEvolBiology_Faria.pdf
file_size: 561340
relation: main_file
success: 1
file_date_updated: 2021-02-09T09:04:02Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 4-15
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- '14209101'
issn:
- 1010061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Speciation in marine environments: Diving under the surface'
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: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 34
year: '2021'
...
---
_id: '7205'
abstract:
- lang: eng
text: Genetic incompatibilities contribute to reproductive isolation between many
diverging populations, but it is still unclear to what extent they play a role
if divergence happens with gene flow. In contact zones between the "Crab" and
"Wave" ecotypes of the snail Littorina saxatilis, divergent selection forms strong
barriers to gene flow, while the role of post‐zygotic barriers due to selection
against hybrids remains unclear. High embryo abortion rates in this species could
indicate the presence of such barriers. Post‐zygotic barriers might include genetic
incompatibilities (e.g. Dobzhansky–Muller incompatibilities) but also maladaptation,
both expected to be most pronounced in contact zones. In addition, embryo abortion
might reflect physiological stress on females and embryos independent of any genetic
stress. We examined all embryos of >500 females sampled outside and inside contact
zones of three populations in Sweden. Females' clutch size ranged from 0 to 1,011
embryos (mean 130 ± 123), and abortion rates varied between 0% and 100% (mean
12%). We described female genotypes by using a hybrid index based on hundreds
of SNPs differentiated between ecotypes with which we characterized female genotypes.
We also calculated female SNP heterozygosity and inversion karyotype. Clutch size
did not vary with female hybrid index, and abortion rates were only weakly related
to hybrid index in two sites but not at all in a third site. No additional variation
in abortion rate was explained by female SNP heterozygosity, but increased female
inversion heterozygosity added slightly to increased abortion. Our results show
only weak and probably biologically insignificant post‐zygotic barriers contributing
to ecotype divergence, and the high and variable abortion rates were marginally,
if at all, explained by hybrid index of females.
article_processing_charge: No
article_type: original
author:
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Zuzanna
full_name: Zagrodzka, Zuzanna
last_name: Zagrodzka
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
citation:
ama: Johannesson K, Zagrodzka Z, Faria R, Westram AM, Butlin RK. Is embryo abortion
a post-zygotic barrier to gene flow between Littorina ecotypes? Journal of
Evolutionary Biology. 2020;33(3):342-351. doi:10.1111/jeb.13570
apa: Johannesson, K., Zagrodzka, Z., Faria, R., Westram, A. M., & Butlin, R.
K. (2020). Is embryo abortion a post-zygotic barrier to gene flow between Littorina
ecotypes? Journal of Evolutionary Biology. Wiley. https://doi.org/10.1111/jeb.13570
chicago: Johannesson, Kerstin, Zuzanna Zagrodzka, Rui Faria, Anja M Westram, and
Roger K. Butlin. “Is Embryo Abortion a Post-Zygotic Barrier to Gene Flow between
Littorina Ecotypes?” Journal of Evolutionary Biology. Wiley, 2020. https://doi.org/10.1111/jeb.13570.
ieee: K. Johannesson, Z. Zagrodzka, R. Faria, A. M. Westram, and R. K. Butlin, “Is
embryo abortion a post-zygotic barrier to gene flow between Littorina ecotypes?,”
Journal of Evolutionary Biology, vol. 33, no. 3. Wiley, pp. 342–351, 2020.
ista: Johannesson K, Zagrodzka Z, Faria R, Westram AM, Butlin RK. 2020. Is embryo
abortion a post-zygotic barrier to gene flow between Littorina ecotypes? Journal
of Evolutionary Biology. 33(3), 342–351.
mla: Johannesson, Kerstin, et al. “Is Embryo Abortion a Post-Zygotic Barrier to
Gene Flow between Littorina Ecotypes?” Journal of Evolutionary Biology,
vol. 33, no. 3, Wiley, 2020, pp. 342–51, doi:10.1111/jeb.13570.
short: K. Johannesson, Z. Zagrodzka, R. Faria, A.M. Westram, R.K. Butlin, Journal
of Evolutionary Biology 33 (2020) 342–351.
date_created: 2019-12-22T23:00:43Z
date_published: 2020-03-01T00:00:00Z
date_updated: 2023-09-06T14:48:57Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/jeb.13570
external_id:
isi:
- '000500954800001'
pmid:
- '31724256'
file:
- access_level: open_access
checksum: 7534ff0839709c0c5265c12d29432f03
content_type: application/pdf
creator: dernst
date_created: 2020-09-22T09:42:18Z
date_updated: 2020-09-22T09:42:18Z
file_id: '8553'
file_name: 2020_EvolBiology_Johannesson.pdf
file_size: 885611
relation: main_file
success: 1
file_date_updated: 2020-09-22T09:42:18Z
has_accepted_license: '1'
intvolume: ' 33'
isi: 1
issue: '3'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 342-351
pmid: 1
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- '14209101'
issn:
- 1010061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '13067'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Is embryo abortion a post-zygotic barrier to gene flow between Littorina ecotypes?
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: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 33
year: '2020'
...