Approximate Bayesian Computation Untangles Signatures of Contemporary and Historical Hybridization between Two Endangered Species.

ABSTRACT: Contemporary gene flow, when resumed after a period of isolation, can have crucial consequences for endangered species, as it can both increase the supply of adaptive alleles and erode local adaptation. Determining the history of gene flow and thus the importance of contemporary hybridization, however, is notoriously difficult. Here, we focus on two endangered plant species, Arabis nemorensis and A. sagittata, which hybridize naturally in a sympatric population located on the banks of the Rhine. Using reduced genome sequencing, we determined the phylogeography of the two taxa but report only a unique sympatric population. Molecular variation in chloroplast DNA indicated that A. sagittata is the principal receiver of gene flow. Applying classical D-statistics and its derivatives to whole-ge

SUBMITTER: Dittberner H 

PROVIDER: S-EPMC8826969 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature