---
_id: '7582'
abstract:
- lang: eng
text: Small RNAs (smRNA, 19–25 nucleotides long), which are transcribed by RNA polymerase
II, regulate the expression of genes involved in a multitude of processes in eukaryotes.
miRNA biogenesis and the proteins involved in the biogenesis pathway differ across
plant and animal lineages. The major proteins constituting the biogenesis pathway,
namely, the Dicers (DCL/DCR) and Argonautes (AGOs), have been extensively studied.
However, the accessory proteins (DAWDLE (DDL), SERRATE (SE), and TOUGH (TGH))
of the pathway that differs across the two lineages remain largely uncharacterized.
We present the first detailed report on the molecular evolution and divergence
of these proteins across eukaryotes. Although DDL is present in eukaryotes and
prokaryotes, SE and TGH appear to be specific to eukaryotes. The addition/deletion
of specific domains and/or domain-specific sequence divergence in the three proteins
points to the observed functional divergence of these proteins across the two
lineages, which correlates with the differences in miRNA length across the two
lineages. Our data enhance the current understanding of the structure–function
relationship of these proteins and reveals previous unexplored crucial residues
in the three proteins that can be used as a basis for further functional characterization.
The data presented here on the number of miRNAs in crown eukaryotic lineages are
consistent with the notion of the expansion of the number of miRNA-coding genes
in animal and plant lineages correlating with organismal complexity. Whether this
difference in functionally correlates with the diversification (or presence/absence)
of the three proteins studied here or the miRNA signaling in the plant and animal
lineages is unclear. Based on our results of the three proteins studied here and
previously available data concerning the evolution of miRNA genes in the plant
and animal lineages, we believe that miRNAs probably evolved once in the ancestor
to crown eukaryotes and have diversified independently in the eukaryotes.
article_number: '299'
article_processing_charge: No
article_type: original
author:
- first_name: Taraka Ramji
full_name: Moturu, Taraka Ramji
last_name: Moturu
- first_name: Sansrity
full_name: Sinha, Sansrity
last_name: Sinha
- first_name: Hymavathi
full_name: Salava, Hymavathi
last_name: Salava
- first_name: Sravankumar
full_name: Thula, Sravankumar
last_name: Thula
- first_name: Tomasz
full_name: Nodzyński, Tomasz
last_name: Nodzyński
- first_name: Radka Svobodová
full_name: Vařeková, Radka Svobodová
last_name: Vařeková
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Sibu
full_name: Simon, Sibu
id: 4542EF9A-F248-11E8-B48F-1D18A9856A87
last_name: Simon
orcid: 0000-0002-1998-6741
citation:
ama: Moturu TR, Sinha S, Salava H, et al. Molecular evolution and diversification
of proteins involved in miRNA maturation pathway. Plants. 2020;9(3). doi:10.3390/plants9030299
apa: Moturu, T. R., Sinha, S., Salava, H., Thula, S., Nodzyński, T., Vařeková, R.
S., … Simon, S. (2020). Molecular evolution and diversification of proteins involved
in miRNA maturation pathway. Plants. MDPI. https://doi.org/10.3390/plants9030299
chicago: Moturu, Taraka Ramji, Sansrity Sinha, Hymavathi Salava, Sravankumar Thula,
Tomasz Nodzyński, Radka Svobodová Vařeková, Jiří Friml, and Sibu Simon. “Molecular
Evolution and Diversification of Proteins Involved in MiRNA Maturation Pathway.”
Plants. MDPI, 2020. https://doi.org/10.3390/plants9030299.
ieee: T. R. Moturu et al., “Molecular evolution and diversification of proteins
involved in miRNA maturation pathway,” Plants, vol. 9, no. 3. MDPI, 2020.
ista: Moturu TR, Sinha S, Salava H, Thula S, Nodzyński T, Vařeková RS, Friml J,
Simon S. 2020. Molecular evolution and diversification of proteins involved in
miRNA maturation pathway. Plants. 9(3), 299.
mla: Moturu, Taraka Ramji, et al. “Molecular Evolution and Diversification of Proteins
Involved in MiRNA Maturation Pathway.” Plants, vol. 9, no. 3, 299, MDPI,
2020, doi:10.3390/plants9030299.
short: T.R. Moturu, S. Sinha, H. Salava, S. Thula, T. Nodzyński, R.S. Vařeková,
J. Friml, S. Simon, Plants 9 (2020).
date_created: 2020-03-15T23:00:52Z
date_published: 2020-03-01T00:00:00Z
date_updated: 2025-05-07T11:12:28Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.3390/plants9030299
ec_funded: 1
external_id:
isi:
- '000525315000035'
pmid:
- '32121542'
file:
- access_level: open_access
checksum: 6d5af3e17266a48996b4af4e67e88a85
content_type: application/pdf
creator: dernst
date_created: 2020-03-23T13:37:00Z
date_updated: 2020-07-14T12:48:00Z
file_id: '7614'
file_name: 2020_Plants_Moturu.pdf
file_size: 2373484
relation: main_file
file_date_updated: 2020-07-14T12:48:00Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '3'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Plants
publication_identifier:
eissn:
- '22237747'
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: Molecular evolution and diversification of proteins involved in miRNA maturation
pathway
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: 9
year: '2020'
...