Heat-induced masculinization in domesticated zebrafish is family-specific and yields a set of different gonadal transcriptomes.

ABSTRACT: Understanding environmental influences on sex ratios is important for the study of the evolution of sex-determining mechanisms and for evaluating the effects of global warming and chemical pollution. Fishes exhibit sexual plasticity, but the underlying mechanisms of environmental effects on their reproduction are unclear even in the well-established teleost research model, the zebrafish. Here we established the conditions to study the effects of elevated temperature on zebrafish sex. We showed that sex ratio response to elevated temperature is family-specific and typically leads to masculinization (female-to-male sex reversal), resulting in neomales. These results uncovered genotype-by-environment interactions that support a polygenic sex determination system in domesticated (laboratory) z

SUBMITTER: Ribas L 

PROVIDER: S-EPMC5307468 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature