Developmental expression of doublesex-related transcripts in the common house spider, Parasteatoda tepidariorum.

Sex determination is a rapidly evolving biological process controlled by differential gene expression. One family of transcription factors that initiate sex-specific gene expression and differentiation in many animal species are the Doublesex and Mab-3 (DM) domain proteins. While much is known about Doublesex-related proteins in various insect orders and commonly studied model systems, little is known about their function in basally branching arthropods.