Sex hormone binding globulin: Expression throughout early development and adult pejerrey fish, Odontesthes bonariensis.
Gen Comp Endocrinol
; 247: 205-214, 2017 06 01.
Article
en En
| MEDLINE
| ID: mdl-28189591
ABSTRACT
Sex hormone binding globulin (Shbg) is a plasma glycoprotein that binds and transports steroids in the blood of all vertebrate classes apart from birds. In the present study we characterized shbg from pejerrey, a fish species with a well characterized temperature-dependent sex determination. The pejerrey shbg mRNA comprises 1185bp encoding for a 395 amino acid Shbg precursor protein that includes a leader sequence for secretion. Relative quantification of shbg transcript abundance revealed expression early in development coinciding with the sex-determining period and probably in association with temperature leading to male determination. The hepatopancreas was the main site of shbg expression, which varied according to the sex cycle in females. It was also expressed in gills, gonads, gut and taste buds during both larval stages and in adult fish. The presence of Shbg in organs in close contact with the environment such as gills, pseudobranchs, gut and taste buds suggests that these are potential sources of uptake or release of steroids/xenosteroids to and from the aquatic environment.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Globulina de Unión a Hormona Sexual
/
Regulación del Desarrollo de la Expresión Génica
/
Smegmamorpha
Límite:
Animals
Idioma:
En
Revista:
Gen Comp Endocrinol
Año:
2017
Tipo del documento:
Article
País de afiliación:
Argentina