The population structure and recent colonization history of Oregon threespine stickleback determined using restriction-site associated DNA-sequencing.

ABSTRACT: Understanding how genetic variation is partitioned across genomes within and among populations is a fundamental problem in ecological and evolutionary genetics. To address this problem, we studied the threespine stickleback fish, which has repeatedly undergone parallel phenotypic and genetic differentiation when oceanic fish have invaded freshwater habitats. While significant evolutionary genetic research has been performed using stickleback from geographic regions that have been deglaciated in the last 20 000 years, less research has focused on freshwater populations that predate the last glacial maximum. We performed restriction-site associated DNA-sequencing (RAD-seq) based population genomic analyses on stickleback from across Oregon, which was not glaciated during the last maximum. We

SUBMITTER: Catchen J 

PROVIDER: S-EPMC3712868 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature