Genomic basis of parallel adaptation varies with divergence in Arabidopsis and its relatives
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43905669" target="_blank" >RIV/60076658:12310/21:43905669 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/21:00547550 RIV/67985939:_____/21:00547550 RIV/00216208:11310/21:10435810
Result on the web
<a href="https://www.pnas.org/doi/full/10.1073/pnas.2022713118" target="_blank" >https://www.pnas.org/doi/full/10.1073/pnas.2022713118</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.2022713118" target="_blank" >10.1073/pnas.2022713118</a>
Alternative languages
Result language
angličtina
Original language name
Genomic basis of parallel adaptation varies with divergence in Arabidopsis and its relatives
Original language description
Parallel adaptation provides valuable insight into the predictability of evolutionary change through replicated natural experiments. A steadily increasing number of studies have demonstrated genomic parallelism, yet the magnitude of this parallelism varies depending on whether populations, species, or genera are compared. This led us to hypothesize that the magnitude of genomic parallelism scales with genetic divergence between lineages, but whether this is the case and the underlying evolutionary processes remain unknown. Here, we resequenced seven parallel lineages of two Arabidopsis species, which repeatedly adapted to challenging alpine environments. By combining genome-wide divergence scans with modelbased approaches, we detected a suite of 151 genes that show parallel signatures of positive selection associated with alpine colonization, involved in response to cold, high radiation, short season, herbivores, and pathogens. We complemented these parallel candidates with published gene lists from five additional alpine Brassicaceae and tested our hypothesis on a broad scale spanning similar to 0.02 to 18 My of divergence. Indeed, we found quantitatively variable genomic parallelism whose extent significantly decreased with increasing divergence between the compared lineages. We further modeled parallel evolution over the Arabidopsis candidate genes and showed that a decreasing probability of repeated selection on the same standing or introgressed alleles drives the observed pattern of divergence-dependent parallelism. We therefore conclude that genetic divergence between populations, species, and genera, affecting the pool of shared variants, is an important factor in the predictability of genome evolution.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of The National Academy of Sciences of The United States of America
ISSN
0027-8424
e-ISSN
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Volume of the periodical
118
Issue of the periodical within the volume
21
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
nestrankovano
UT code for WoS article
000659439900015
EID of the result in the Scopus database
2-s2.0-85106386339