Adaptive genetic variation distinguishes Chilean blue mussels (Mytilus chilensis) from different marine environments.

ABSTRACT: Chilean mussel populations have been thought to be panmictic with limited genetic structure. Genotyping-by-sequencing approaches have enabled investigation of genomewide variation that may better distinguish populations that have evolved in different environments. We investigated neutral and adaptive genetic variation in Mytilus from six locations in southern Chile with 1240 SNPs obtained with RAD-seq. Differentiation among locations with 891 neutral SNPs was low (F_ST = 0.005). Higher differentiation was obtained with a panel of 58 putative outlier SNPs (F_ST = 0.114) indicating the potential for local adaptation. This panel identified clusters of genetically related individuals and demonstrated that much of the differentiation (~92%) could be attr

SUBMITTER: Araneda C 

PROVIDER: S-EPMC4851556 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature