Detailed Information on Publication Record
2021
Novelty and Convergence in Adaptation to Whole Genome Duplication
BOHUTINSKA, M., M. ALSTON, P. MONNAHAN, Terezie MALÍK MANDÁKOVÁ, S. BRAY et. al.Basic information
Original name
Novelty and Convergence in Adaptation to Whole Genome Duplication
Authors
BOHUTINSKA, M., M. ALSTON, P. MONNAHAN, Terezie MALÍK MANDÁKOVÁ (203 Czech Republic, guarantor, belonging to the institution), S. BRAY, P. PAAJANEN, F. KOLAR and L. YANT
Edition
Molecular Biology and Evolution, OXFORD, OXFORD UNIV PRESS, 2021, 0737-4038
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 8.800
RIV identification code
RIV/00216224:14740/21:00119674
Organization unit
Central European Institute of Technology
UT WoS
000693664800031
Keywords in English
polyploidy; convergence; genome duplication; adaptation
Tags
Tags
International impact, Reviewed
Změněno: 12/4/2022 11:37, Mgr. Natálie Hílek
Abstract
V originále
Whole genome duplication (WGD) can promote adaptation but is disruptive to conserved processes, especially meiosis. Studies in Arabidopsis arenosa revealed a coordinated evolutionary response to WGD involving interacting proteins controlling meiotic crossovers, which are minimized in an autotetraploid (within-species polyploid) to avoid missegregation. Here, we test whether this surprising flexibility of a conserved essential process, meiosis, is recapitulated in an independent WGD system, Cardamine amara, 17 My diverged from A. arenosa. We assess meiotic stability and perform population-based scans for positive selection, contrasting the genomic response to WGD in C. amara with that of A. arenosa. We found in C amara the strongest selection signals at genes with predicted functions thought important to adaptation to WGD: meiosis, chromosome remodeling, cell cycle, and ion transport. However, genomic responses to WGD in the two species differ: minimal ortholog-level convergence emerged, with none of the meiosis genes found in A. arenosa exhibiting strong signal in C amara. This is consistent with our observations of lower meiotic stability and occasional clonal spreading in diploid C amara, suggesting that nascent C. amara autotetraploid lineages were pre-adapted by their diploid lifestyle to survive while enduring reduced meiotic fidelity. However, in contrast to a lack of ortholog convergence, we see process-level and network convergence in DNA management, chromosome organization, stress signaling, and ion homeostasis processes. This gives the first insight into the salient adaptations required to meet the challenges of a WGD state and shows that autopolyploids can utilize multiple evolutionary trajectories to adapt to WGD.
Links
GA19-03442S, research and development project |
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GA19-06632S, research and development project |
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LM2018140, research and development project |
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LQ1601, research and development project |
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