Whole mitochondrial genome scan for population structure and selection in the Atlantic herring.

ABSTRACT:

Background

Marine fish, such as the Atlantic herring (Clupea harengus), often show a low degree of differentiation over large geographical regions. Despite strong environmental gradients (salinity and temperature) in the Baltic Sea, population genetic studies have shown little genetic differentiation among herring in this area, but some evidence for environmentally-induced selection has been uncovered. The mitochondrial genome is a likely target for selection in this system due to its functional role in metabolism.

Results

We sequenced whole mitochondrial genomes for herring from throughout the Baltic region (n=98) in order to investigate evidence for geographical structuring, selection, and associations between genetic and environmental variation. Three well-supported clade

SUBMITTER: Teacher AG 

PROVIDER: S-EPMC3545857 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature