Genetic architecture of repeated phenotypic divergence in Littorina saxatilis ecotype evolution.

ABSTRACT: Chromosomal inversions have been shown to play a major role in a local adaptation by suppressing recombination between alternative arrangements and maintaining beneficial allele combinations. However, so far, their importance relative to the remaining genome remains largely unknown. Understanding the genetic architecture of adaptation requires better estimates of how loci of different effect sizes contribute to phenotypic variation. Here, we used three Swedish islands where the marine snail Littorina saxatilis has repeatedly evolved into two distinct ecotypes along a habitat transition. We estimated the contribution of inversion polymorphisms to phenotypic divergence while controlling for polygenic effects in the remaining genome using a quantitative genetics framework. We confirmed the im

SUBMITTER: Koch EL 

PROVIDER: S-EPMC9826283 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature