Population genomic evidence for adaptive differentiation in Baltic Sea three-spined sticklebacks.

ABSTRACT:

Background

The degree of genetic differentiation among populations experiencing high levels of gene flow is expected to be low for neutral genomic sites, but substantial divergence can occur in sites subject to directional selection. Studies of highly mobile marine fish populations provide an opportunity to investigate this kind of heterogeneous genomic differentiation, but most studies to this effect have focused on a relatively low number of genetic markers and/or few populations. Hence, the patterns and extent of genomic divergence in high-gene flow marine fish populations remain poorly understood.

Results

We here investigated genome-wide patterns of genetic variability and differentiation in 10 marine populations of three-spined stickleback (Gasterosteus aculeatus) distr

SUBMITTER: Guo B 

PROVIDER: S-EPMC4410466 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature