Multiple polyploidizations in Arabidopsis lyrata stabilized by long-range adaptive introgression across Eurasia

Scott, A.D.; Kolesnikova, U.K.; Glushkevich, A.; Steinmann, L.; Tikhomirov, N.; Pfordt, U.; Bohutinska, M.; Burns, R.; Seregin, A.P.; Kolar, F.; Schmickl, R.; Novikova, P.Y.

Авторы: Scott Alison Dawn, Kolesnikova Uliana K., Glushkevich Anna, Steinmann Laura, Tikhomirov Nikita, Pfordt Ursula, Bohutinska Magdalena, Burns Robin, Seregin Alexey P., Kolar Filip, Schmickl Roswitha, Novikova Polina Yu
Журнал: bioRxiv
Год издания: 2024
DOI: 10.1101/2024.08.27.609292
Аннотация: Abundance of polyploidy varies across lineages, evolutionary time and geography, suggesting both genetics and environment play a role in polyploid persistence. Arabidopsis lyrata appears to be the most polyploidy-rich species-complex in the Arabidopsis genus, with multiple origins of autotetraploidy. This is revealed by genomic data from over 400 samples across Eurasia. We found over 30 previously undescribed autotetraploid populations in Siberia with a minimum of two separate origins, independent of those previously reported in Central Europe. The establishment of Siberian tetraploids is mediated by meiotic adaptation at the same genes as in European tetraploid A. lyrata and Arabidopsis arenosa, despite high divergence and geographical separation. Haplotype analysis based on synthetic long-read assemblies supports the long-range introgression of adaptive alleles from the tetraploid interspecific pool of European A. lyrata and A. arenosa to tetraploid Siberian A. lyrata. Once evolved, adaptation to polyploidy promotes the establishment of new polyploid lineages through adaptive inter– and intraspecific introgression.
Добавил в систему: Серегин Алексей Петрович

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Multiple polyploidizations in Arabidopsis lyrata stabilized by long-range adaptive introgression across Eurasiaстатья

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