Genetic monitoring reveals temporal stability over 30 years in a small, lake-resident brown trout population.

ABSTRACT: Knowledge of the degree of temporal stability of population genetic structure and composition is important for understanding microevolutionary processes and addressing issues of human impact of natural populations. We know little about how representative single samples in time are to reflect population genetic constitution, and we explore the temporal genetic variability patterns over a 30-year period of annual sampling of a lake-resident brown trout (Salmo trutta) population, covering 37 consecutive cohorts and five generations. Levels of variation remain largely stable over this period, with no indication of substructuring within the lake. We detect genetic drift, however, and the genetically effective population size (N(e)) was assessed from allele-frequency shifts between consecutive c

SUBMITTER: Charlier J 

PROVIDER: S-EPMC3464028 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature