Data/hora: 29/05/2024 05:40:15

Provedor de dados: | Genetics and Molecular Biology
País: | Brazil
Título: | Genetic evaluation of the mating system in the blue-and-yellow macaw (Ara ararauna, Aves, Psittacidae) by DNA fingerprinting
Autores: | Caparroz,Renato; Miyaki,Cristina Y.; Baker,Allan J.
Data: | 2011-01-01
Ano: | 2011
Palavras-chave: | Ara ararauna; Breeding behavior; DNA fingerprinting; Monogamy; Psittacidae.
Resumo: | More than 90% of birds are socially monogamous, although genetic studies indicate that many are often not sexually monogamous. In the present study, DNA fingerprinting was used to estimate the genetic relationships between nestlings belonging to the same broods to evaluate the mating system in the socially monogamous macaw, Ara ararauna. We found that in 10 of 11 broods investigated, the nestlings showed genetic similarity levels congruent with values expected among full-sibs, suggesting that they shared the same parents. However, in one brood, the low genetic similarity observed between nestlings could be a result of intraspecific brood parasitism, intraspecific nest competition or extra-pair paternity. These results, along with available behavioral and life-history data, imply that the blue-and-yellow macaw is not only socially, but also genetically monogamous. However, the occurrence of eventual cases of extra-pair paternity cannot be excluded.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100027
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572010005000112
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.34 n.1 2011
Fonte: | info:eu-repo/semantics/openAccess