Disentangling the genetic effects of refugial isolation and range expansion in a trans-continentally distributed species.

ABSTRACT: In wide-ranging taxa with historically dynamic ranges, past allopatric isolation and range expansion can both influence the current structure of genetic diversity. Considering alternate historical scenarios involving expansion from either a single refugium or from multiple refugia can be useful in differentiating the effects of isolation and expansion. Here, we examined patterns of genetic variability in the trans-continentally distributed painted turtle (Chrysemys picta). We utilized an existing phylogeographic dataset for the mitochondrial control region and generated additional data from nine populations for the mitochondrial control region (n = 302) and for eleven nuclear microsatellite loci (n = 247). We created a present-day ecological niche model (ENM) for C. picta and hindcast this

SUBMITTER: Reid BN 

PROVIDER: S-EPMC6460764 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature