Comparison of Migratory and Resident Populations of Brown Trout Reveals Candidate Genes for Migration Tendency.

ABSTRACT: Candidate genes associated with migration have been identified in multiple taxa: including salmonids, many of whom perform migrations requiring a series of physiological changes associated with the freshwater-saltwater transition. We screened over 5,500 SNPs for signatures of selection related to migratory behavior of brown trout Salmo trutta by focusing on ten differentially migrating freshwater populations from two watersheds (the Koutajoki and the Oulujoki). We found eight outlier SNPs potentially associated with migratory versus resident life history using multiple (≥3) outlier detection approaches. Comparison of three migratory versus resident population pairs in the Koutajoki watershed revealed seven outlier SNPs, of which three mapped close to genes ZNF665-like, GRM4-like, and PCDH8

SUBMITTER: Lemopoulos A 

PROVIDER: S-EPMC6007540 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature