Ovotestes suggest cryptic genetic influence in a reptile model for temperature-dependent sex determination.

ABSTRACT: Sex determination and differentiation in reptiles is complex. Temperature-dependent sex determination (TSD), genetic sex determination (GSD) and the interaction of both environmental and genetic cues (sex reversal) can drive the development of sexual phenotypes. The jacky dragon (Amphibolurus muricatus) is an attractive model species for the study of gene-environment interactions because it displays a form of Type II TSD, where female-biased sex ratios are observed at extreme incubation temperatures and approximately 50 : 50 sex ratios occur at intermediate temperatures. This response to temperature has been proposed to occur due to underlying sex determining loci, the influence of which is overridden at extreme temperatures. Thus, sex reversal at extreme temperatures is predicted t

SUBMITTER: Whiteley SL 

PROVIDER: S-EPMC7893254 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature