Evolution of Sex-Biased Gene Expression During Transitions to Separate Sexes in the Silene Genus.

ABSTRACT: Sexual dimorphism is widespread among species with separate sexes, and its extent is thought to be governed by the differential expression of thousands of genes between males and females known as sex-biased genes (SBGs). SBGs have been studied in numerous species, but rarely through comparative approaches, which limits our understanding of their evolution, especially during multiple, independent transitions to separate sexes. We sequenced the transcriptomes of nine dioecious species (with separate males and females), two gynodioecious species (with separate females and hermaphrodites), and two hermaphrodite species from the Silene genus. Our dataset encompasses three independent transitions to dioecy, ranging from less than 1 million years ago (Mya) to about 11 Mya. We found that the numbe

SUBMITTER: Prentout D 

PROVIDER: S-EPMC12527345 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature