Parallel adaptation in autopolyploid Arabidopsis arenosa is dominated by repeated recruitment of shared alleles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00547326" target="_blank" >RIV/60077344:_____/21:00547326 - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/21:00547326 RIV/00216208:11310/21:10431611 RIV/60076658:12310/21:43905666
Result on the web
<a href="https://doi.org/10.1038/s41467-021-25256-5" target="_blank" >https://doi.org/10.1038/s41467-021-25256-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-021-25256-5" target="_blank" >10.1038/s41467-021-25256-5</a>

Result language
angličtina
Original language name
Parallel adaptation in autopolyploid Arabidopsis arenosa is dominated by repeated recruitment of shared alleles
Original language description
Relative contributions of pre-existing vs de novo genomic variation to adaptation are poorly understood, especially in polyploid organisms. We assess this in high resolution using autotetraploid Arabidopsis arenosa, which repeatedly adapted to toxic serpentine soils that exhibit skewed elemental profiles. Leveraging a fivefold replicated serpentine invasion, we assess selection on SNPs and structural variants (TEs) in 78 resequenced individuals and discover significant parallelism in candidate genes involved in ion homeostasis. We further model parallel selection and infer repeated sweeps on a shared pool of variants in nearly all these loci, supporting theoretical expectations. A single striking exception is represented by TWO PORE CHANNEL 1, which exhibits convergent evolution from independent de novo mutations at an identical, otherwise conserved site at the calcium channel selectivity gate. Taken together, this suggests that polyploid populations can rapidly adapt to environmental extremes, calling on both pre-existing variation and novel polymorphisms.
Czech name
—
Czech description
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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

Project
<a href="/en/project/GA20-22783S" target="_blank" >GA20-22783S: Genome duplication as an imperfect barrier in speciation? Evolutionary drivers and consequences of inter-ploidy introgression in natural populations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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