Social manipulation of sperm competition intensity reduces seminal fluid gene expression.
Biol Lett
; 14(1)2018 01.
Article
en En
| MEDLINE
| ID: mdl-29367215
ABSTRACT
A considerable body of evidence supports the prediction that males should increase their expenditure on the ejaculate in response to sperm competition risk. The prediction that they should reduce their expenditure with increasing sperm competition intensity is less well supported. Moreover, most studies have documented plasticity in sperm numbers. Here we show that male crickets Teleogryllus oceanicus exhibit reduced seminal fluid gene expression and accessory gland mass in response to elevated sperm competition intensity. Together with previous research, our findings suggest that strategic adjustments in seminal fluid composition contribute to competitive fertilization success in this species.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Semen
/
Conducta Sexual Animal
/
Gryllidae
/
Expresión Génica
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Año:
2018
Tipo del documento:
Article