Mito-nuclear discordance across a recent contact zone for California voles.

ABSTRACT: To examine the processes that maintain genetic diversity among closely related taxa, we investigated the dynamics of introgression across a contact zone between two lineages of California voles (Microtus californicus). We tested the prediction that introgression of nuclear loci would be greater than that for mitochondrial loci, assuming ongoing gene flow across the contact zone. We also predicted that genomic markers would show a mosaic pattern of differentiation across this zone, consistent with genomes that are semi-permeable. Using mitochondrial cytochrome b sequences and genome-wide loci developed via ddRAD-seq, we analyzed genetic variation for 10 vole populations distributed along the central California coast; this transect included populations from within the distribut

SUBMITTER: Lin D 

PROVIDER: S-EPMC6024151 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature