Do North Atlantic eels show parallel patterns of spatially varying selection?

ABSTRACT:

Background

The two North Atlantic eel species, the European and the American eel, represent an ideal system in which to study parallel selection patterns due to their sister species status and the presence of ongoing gene flow. A panel of 80 coding-gene SNPs previously analyzed in American eel was used to genotype European eel individuals (glass eels) from 8 sampling locations across the species distribution. We tested for single-generation signatures of spatially varying selection in European eel by searching for elevated genetic differentiation using FST-based outlier tests and by testing for significant associations between allele frequencies and environmental variables.

Results

We found signatures of possible selection at a total of 11 coding-gene SNPs. Candidate genes f

SUBMITTER: Ulrik MG 

PROVIDER: S-EPMC4069275 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature