Hybridization in large-bodied New World primates.
Genetics
; 176(4): 2421-5, 2007 Aug.
Article
em En
| MEDLINE
| ID: mdl-17603105
ABSTRACT
Well-documented cases of natural hybridization among primates are not common. In New World primates, natural hybridization has been reported only for small-bodied species, but no genotypic data have ever been gathered that confirm these reports. Here we present genetic evidence of hybridization of two large-bodied species of neotropical primates that diverged approximately 3 MYA. We used species-diagnostic mitochondrial and microsatellite loci and the Y chromosome Sry gene to determine the hybrid status of 36 individuals collected from an area of sympatry in Tabasco, Mexico. Thirteen individuals were hybrids. We show that hybridization and subsequent backcrosses are directionally biased and that the only likely cross between parental species produces fertile hybrid females, but fails to produce viable or fertile males. This system can be used as a model to study gene interchange between primate species that have not achieved complete reproductive isolation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Alouatta
/
Hibridização Genética
Limite:
Animals
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Genetics
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Estados Unidos