Fly wing evolution explained by a neutral model with mutational pleiotropy.

ABSTRACT: To what extent the speed of mutational production of phenotypic variation determines the rate of long-term phenotypic evolution is a central question. Houle et al. recently addressed this question by studying the mutational variances, additive genetic variances, and macroevolution of locations of vein intersections on fly wings, reporting very slow phenotypic evolution relative to the rates of mutational input, high phylogenetic signals, and a strong, linear relationship between the mutational variance of a trait and its rate of evolution. Houle et al. found no existing model of phenotypic evolution to be consistent with all these observations, and proposed the improbable scenario of equal influence of mutational pleiotropy on all traits. Here, we demonstrate that the purported linear rela

SUBMITTER: Jiang D 

PROVIDER: S-EPMC7939105 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature