| Texto completo | |
| Autor(es): |
de Souza, Andre R.
;
Santos, Eduardo F.
;
Baptista, Camila F.
;
Dias, Glenda
;
Nascimento, Fabio S.
;
Lino-Neto, Jose
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ETHOLOGY ECOLOGY & EVOLUTION; v. N/A, p. 10-pg., 2022-09-26. |
| Resumo | |
Diversification of sperm design is a common feature in animals. Considerable intra-individual variation has been detected even in species whose males produce a monomorphic sperm. The evolutionary forces that shape the variation in the gross morphology of these gametic cells are still not completely understood. Previous studies suggest that the intra-individual variation in sperm size reduces as a result of post-copulatory sexual selection. To our knowledge, for the first time, we provide evidence here that pre-copulatory sexual selection can also play a role. By studying the Neotropical paper wasp, Polistes simillimus, a monandrous species, we found reduced variation in sperm length in males bearing sexual ornamentation preferred by females. Besides, the female spermatheca contains a less variable sperm compared to that in the male seminal vesicles. Thus, the scope of selection, acting on this sperm trait, seems broader than previously acknowledged. (AU) | |
| Processo FAPESP: | 20/06632-2 - Fauna de Thynninae Neotropical: distribuição e novos dados morfológicos e moleculares para a taxonomia do grupo |
| Beneficiário: | Eduardo Fernando dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 20/14464-2 - Seleção sexual em vespas sociais neotropicais |
| Beneficiário: | André Rodrigues de Souza |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |