Adaptive Introgression Facilitates Adaptation to High Latitudes in European Aspen (Populus tremula L.).

ABSTRACT: Understanding local adaptation has become a key research area given the ongoing climate challenge and the concomitant requirement to conserve genetic resources. Perennial plants, such as forest trees, are good models to study local adaptation given their wide geographic distribution, largely outcrossing mating systems, and demographic histories. We evaluated signatures of local adaptation in European aspen (Populus tremula) across Europe by means of whole-genome resequencing of a collection of 411 individual trees. We dissected admixture patterns between aspen lineages and observed a strong genomic mosaicism in Scandinavian trees, evidencing different colonization trajectories into the peninsula from Russia, Central and Western Europe. As a consequence of the secondary contacts between pop

SUBMITTER: Rendon-Anaya M 

PROVIDER: S-EPMC8557470 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature