Differential expression of reproduction and sex-determining genes in the gonads of genotypic and temperature-induced males of gibel carp (Carassius gibelio).

ABSTRACT: Sex in vertebrates is commonly determined by genotype and environmental conditions, such as temperature. A few species display intermediate systems, combining sex chromosomes with temperature effect. This phenomenon has been reported in gibel carp (Carassius gibelio), an invasive cyprinid fish whose invasiveness is linked to the combination of sexual and asexual reproduction. Here, we compared gonadal transcriptomes between genotypic males and temperature-induced males of C. gibelio, focusing specifically on genes related to reproduction. Many meiosis and male differentiation pathways were common to genotypic and temperature-induced males. However, the underrepresentation of reproduction- and spermatogenesis-related terms in temperature-induced males suggests reduced reproductive abilities

SUBMITTER: Jacques F 

PROVIDER: S-EPMC12678475 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature