Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/61065
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Distinct evolutionary patterns of morphometric sperm traits in passerine birds |
Autor: | Immler, Simone; González-Voyer, Alejandro; Birkhead, Tim R. | Fecha de publicación: | 2012 | Editor: | Royal Society (Great Britain) | Citación: | Proceedings of the Royal Society B: Biological Sciences 279: 4174- 4182 (2012) | Resumen: | The striking diversity of sperm shape across the animal kingdom is still poorly understood. Postcopulatory sexual selection is an important factor driving the evolution of sperm size and shape. Interestingly, morphometric sperm traits, such as the length of the head, midpiece and flagellum, exhibit a strong positive phenotypic correlation across species. Here we used recently developed comparative methods to investigate how such phenotypic correlations between morphometric sperm traits may evolve. We compare allometric relationships and evolutionary trajectories of three morphometric sperm traits (length of head, midpiece and flagellum) in passerine birds. We show that these traits exhibit strong phenotypic correlations but that allometry varies across families. In addition, the evolutionary trajectories of the midpiece and flagellum are similar while the trajectory for head length differs. We discuss our findings in the light of three scenarios accounting for correlated trait evolution: (i) genetic correlation; (ii) concerted response to selection acting simultaneously on different traits; and (iii) phenotypic correlation between traits driven by mechanistic constraints owing to selection on sperm performance. Our results suggest that concerted response to selection is the most likely explanation for the phenotypic correlation between morphometric sperm traits. © 2012 The Royal Society. | URI: | http://hdl.handle.net/10261/61065 | DOI: | 10.1098/rspb.2012.1398 | Identificadores: | doi: 10.1098/rspb.2012.1398 issn: 0962-8452 |
Aparece en las colecciones: | (EBD) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
proc.pdf | 281,4 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
PubMed Central
Citations
7
checked on 23-abr-2024
SCOPUSTM
Citations
19
checked on 03-may-2024
WEB OF SCIENCETM
Citations
19
checked on 24-feb-2024
Page view(s)
321
checked on 05-may-2024
Download(s)
218
checked on 05-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
Artículos relacionados:
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.