Local adaptation at the transcriptome level in brown trout: evidence from early life history temperature genomic reaction norms.

ABSTRACT: Local adaptation and its underlying molecular basis has long been a key focus in evolutionary biology. There has recently been increased interest in the evolutionary role of plasticity and the molecular mechanisms underlying local adaptation. Using transcriptome analysis, we assessed differences in gene expression profiles for three brown trout (Salmo trutta) populations, one resident and two anadromous, experiencing different temperature regimes in the wild. The study was based on an F2 generation raised in a common garden setting. A previous study of the F1 generation revealed different reaction norms and significantly higher QST than FST among populations for two early life-history traits. In the present study we investigated if genomic reaction norm patterns were also present at the tr

SUBMITTER: Meier K 

PROVIDER: S-EPMC3891768 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature