Genotype But Not Body Shape Predicts River Migration Success in Atlantic Salmon.

ABSTRACT: Migratory species typically undertake demanding long-distance journeys, across different habitat types during which they are exposed to multiple natural and anthropogenic stressors. Mortality during migration is typically high and may be human induced. Understanding individual responses to these selection pressures is rarely attempted because of the challenges of relating individual phenotypic and genetic data to migration success. Here, we show distinct single nucleotide polymorphism (SNP) sets significantly differentiated between Atlantic salmon smolts making successful migrations to sea and those that failed to migrate, in two different rivers. In contrast, morphological variation was not diagnostic of migration success. Populations from each river were genetically distinct, and while d

SUBMITTER: Moccetti P 

PROVIDER: S-EPMC11647181 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature