English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/128788
Título

Postcopulary sexual selection increases ATP content in rodent spermatozoa

AutorTourmente, Maximiliano ; Rowe, Melissah; González-Barroso, M. Mar ; Rial, Eduardo ; Gomendio, Montserrat ; Roldán, Eduardo R. S.
Palabras claveSperm competition
Fertilization
Sperm swimming velocity
Sperm dimensions
Fecha de publicación22-mar-2013
EditorJohn Wiley & Sons
Society for the Study of Evolution
CitaciónEvolution 67(6): 1838-1846 (2013)
ResumenSperm competition often leads to increase in sperm numbers and sperm quality, and its effects on sperm function are now beginning to emerge. Rapid swimming speeds are crucial for mammalian spermatozoa, because they need to overcome physical barriers in the female tract, reach the ovum, and generate force to penetrate its vestments. Faster velocities associate with high sperm competition levels in many taxa and may be due to increases in sperm dimensions, but they may also relate to higher adenosine triphosphate (ATP) content. We examined if variation in sperm ATP levels relates to both sperm competition and sperm swimming speed in rodents. We found that sperm competition associates with variations in sperm ATP content and sperm-size adjusted ATP concentrations, which suggests proportionally higher ATP content in response to sperm competition. Moreover, both measures were associated with sperm swimming velocities. Our findings thus support the idea that sperm competition may select for higher ATP content leading to faster sperm swimming velocity.
URIhttp://hdl.handle.net/10261/128788
DOI10.1111/evo.12079
Identificadoresdoi: 10.1111/evo.12079
issn: 0014-3820
e-issn: 1558-5646
Aparece en las colecciones: (CIB) Artículos
(MNCN) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Evolution 67(6) 1838-1846 (2013) POSTPRINT.pdf300,27 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.