Population genomics of an endemic Mediterranean fish: differentiation by fine scale dispersal and adaptation.

ABSTRACT: The assessment of the genetic structuring of biodiversity is crucial for management and conservation. For species with large effective population sizes a low number of markers may fail to identify population structure. A solution of this shortcoming can be high-throughput sequencing that allows genotyping thousands of markers on a genome-wide approach while facilitating the detection of genetic structuring shaped by selection. We used Genotyping-by-Sequencing (GBS) on 176 individuals of the endemic East Atlantic peacock wrasse (Symphodus tinca), from 6 locations in the Adriatic and Ionian seas. We obtained a total of 4,155 polymorphic SNPs and we observed two strong barriers to gene flow. The first one differentiated Tremiti Islands, in the northwest, from all the other locations while the

SUBMITTER: Carreras C 

PROVIDER: S-EPMC5338269 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature