Diversity and Convergence of Sex-Determination Mechanisms in Teleost Fish.
Annu Rev Anim Biosci
; 12: 233-259, 2024 Feb 15.
Article
en En
| MEDLINE
| ID: mdl-37863090
ABSTRACT
Sexual reproduction is prevalent across diverse taxa. However, sex-determination mechanisms are so diverse that even closely related species often differ in sex-determination systems. Teleost fish is a taxonomic group with frequent turnovers of sex-determining mechanisms and thus provides us with great opportunities to investigate the molecular and evolutionary mechanisms underlying the turnover of sex-determining systems. Here, we compile recent studies on the diversity of sex-determination mechanisms in fish. We demonstrate that genes in the TGF-ß signaling pathway are frequently used for master sex-determining (MSD) genes. MSD genes arise via two main mechanisms, duplication-and-transposition and allelic mutations, with a few exceptions. We also demonstrate that temperature influences sex determination in many fish species, even those with sex chromosomes, with higher temperatures inducing differentiation into males in most cases. Finally, we review theoretical models for the turnover of sex-determining mechanisms and discuss what questions remain elusive.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Procesos de Determinación del Sexo
/
Peces
Límite:
Animals
Idioma:
En
Revista:
Annu Rev Anim Biosci
Año:
2024
Tipo del documento:
Article