Genetic homogeneity and weak signatures of local adaptation in the marine mussel Mytilus chilensis.

ABSTRACT: The natural populations of the marine mussel Mytilus chilensis and the associated aquaculture industry forms a sensitive social-ecological system that relies on the released propagules for cultivation in the highly heterogeneous environment (temperature, productivity, and salinity) of northern Patagonia (42-44 °S). We assessed spatial genetic structure, signals of local adaptation, and population assignment of M. chilensis analyzing 5963 SNPs from 125 individuals across six natural populations sampled over two consecutive years along the southeast Pacific coast (39° 25' to 43° 07' S, ~ 430 km). Neutral and putatively adaptive loci revealed high genetic diversity and low genetic differentiation among populations. Of the whole dataset, less than 1% (50) of loci were identified as putatively

SUBMITTER: Segovia NI 

PROVIDER: S-EPMC11387636 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature