Distinct developmental mechanisms influence sexual dimorphisms in the milkweed bug Oncopeltus fasciatus.

ABSTRACT: Sexual dimorphism is common in animals. The most complete model of sex determination comes from Drosophila melanogaster, where the relative dosage of autosomes and X chromosomes leads indirectly to sex-specific transcripts of doublesex (dsx). Female Dsx interacts with a mediator complex protein encoded by intersex (ix) to activate female development. In males, the transcription factor encoded by fruitless (fru) promotes male-specific behaviour. The genetics of sex determination have been examined in a small number of other insects, yet several questions remain about the plesiomorphic state. Is dsx required for female and male development? Is fru conserved in male behaviour or morphology? Are other components such as ix f

SUBMITTER: Just J 

PROVIDER: S-EPMC9890105 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature