Life-history genotype explains variation in migration activity in Atlantic salmon (Salmo salar).

ABSTRACT: One of the most well-known life-history continuums is the fast-slow axis, where 'fast' individuals mature earlier than 'slow' individuals. 'Fast' individuals are predicted to be more active than 'slow' individuals because high activity is required to maintain a fast life-history strategy. Recent meta-analyses revealed mixed evidence for such integration. Here, we test whether known life-history genotypes differ in activity expression by using Atlantic salmon (Salmo salar) as a model. In salmon, variation in Vgll3, a transcription cofactor, explains approximately 40% of variation in maturation timing. We predicted that the allele related to early maturation (vgll3*E) would be associated with higher activity. We used an automated surveillance system to follow approximately 1900

SUBMITTER: Niemela PT 

PROVIDER: S-EPMC9277231 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature