INVESTIGADORES
SOMOZA Gustavo Manuel
artículos
Título:
Sex determination in fish: Odontesthes spp. (Atherinopsidae) as experimental models.
Autor/es:
JUAN I. FERNANDINO; RICARDO S. HATTORI; CARLOS A. STRÜSSMANN; YOYI YAMAMOTO; GUSTAVO M. SOMOZA
Revista:
Animal Reproduction
Editorial:
CBRA
Referencias:
Lugar: Belo Horizonte; Año: 2015 vol. 12 p. 24 - 27
ISSN:
1984-3143
Resumen:
The sex of the offspring is the result of a unique process leading, in a binary fate, to the development of male or female characteristics. In this context, the aim of the present work is to present atherinopsid fish as excel lent models to study sex determination. Here we present two atherinopsid fish from South America; one species, Odontesthes bonariensis , has a strong temperature -dependent sex dete rmination (TSD) and the other, Odontesthes hatchery, has a genotypic sex determination (GSD). However, the results obtained in the last years from our laboratories in both species show that the boundaries between these two sex determination mechanisms with in Atherinopsidaeare are not as rigid as previously thought and support the notion that TSD and GSD are the extremes of a continuum.