Footprints of local adaptation span hundreds of linked genes in the Atlantic silverside genome.

ABSTRACT: The study of local adaptation in the presence of ongoing gene flow is the study of natural selection in action, revealing the functional genetic diversity most relevant to contemporary pressures. In addition to individual genes, genome-wide architecture can itself evolve to enable adaptation. Distributed across a steep thermal gradient along the east coast of North America, Atlantic silversides (Menidia menidia) exhibit an extraordinary degree of local adaptation in a suite of traits, and the capacity for rapid adaptation from standing genetic variation, but we know little about the patterns of genomic variation across the species range that enable this remarkable adaptability. Here, we use low-coverage, whole-transcriptome sequencing of Atlantic silversides sampled along an environ

SUBMITTER: Wilder AP 

PROVIDER: S-EPMC7523562 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature