Tests for associations between sexual dimorphism and patterns of quantitative genetic variation in the water strider, Aquarius remigis.

ABSTRACT: The evolution of sexual dimorphisms requires divergence between sexes in the evolutionary trajectories of the traits involved. Discerning how genetic architecture could facilitate such divergence has proven challenging because of the difficulty in estimating non-additive and sex-linked genetic variances using traditional quantitative genetic designs. Here we use a three-generation, double-first-cousin pedigree design to estimate additive, sex-linked and dominance (co)variances for 12 traits in the water strider, Aquarius remigis. Comparisons among these traits, which have size ratios ranging from 1 to 5 (larger/smaller), allow us to ask if sexual dimorphisms are associated with characteristic patterns of quantitative genetic variation. We frame our analysis around three main questions, der

SUBMITTER: Fairbairn DJ 

PROVIDER: S-EPMC10382563 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature