A possible genomic footprint of polygenic adaptation on population divergence in seed beetles?

ABSTRACT: Efforts to unravel the genomic basis of incipient speciation are hampered by a mismatch between our toolkit and our understanding of the ecology and genetics of adaptation. While the former is focused on detecting selective sweeps involving few independently acting or linked speciation genes, the latter states that divergence typically occurs in polygenic traits under stabilizing selection. Here, we ask whether a role of stabilizing selection on polygenic traits in population divergence may be unveiled by using a phenotypically informed integrative approach, based on genome-wide variation segregating in divergent populations. We compare three divergent populations of seed beetles (Callosobruchus maculatus) where previous work has demonstrated a prominent role for stabilizing selecti

SUBMITTER: Arnqvist G 

PROVIDER: S-EPMC9608792 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature