Unidirectional response to bidirectional selection on body size II. Quantitative genetics.

ABSTRACT: Anticipating the genetic and phenotypic changes induced by natural or artificial selection requires reliable estimates of trait evolvabilities (genetic variances and covariances). However, whether or not multivariate quantitative genetics models are able to predict precisely the evolution of traits of interest, especially fitness-related, life history traits, remains an open empirical question. Here, we assessed to what extent the response to bivariate artificial selection on both body size and maturity in the medaka Oryzias latipes, a model fish species, fits the theoretical predictions. Three lines (Large, Small, and Control lines) were differentially selected for body length at 75 days of age, conditional on maturity. As maturity and body size were phenotypically correlated, this

SUBMITTER: Le Rouzic A 

PROVIDER: S-EPMC7593195 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature