Data/hora: 09/06/2024 06:13:27

Provedor de dados: | 74
País: | Brazil
Título: | Is the American Zebu really Bos indicus?
Autores: | Meirelles,Flávio V.; Rosa,Artur J.M.; Lôbo,Raysildo B.; Garcia,Joaquim M.; Smith,Lawrence C.; Duarte,Francisco A.M.
Data: | 1999-12-01
Ano: | 1999
Resumo: | The American continent was colonized in the 16th century by Europeans who first introduced cattle of Bos taurus origin. Accounts register introduction of Bos indicus cattle into South America in the 19th and continuing through the 20th century, and most reported imports were males derived from the Indian subcontinent. In the present study we show, by using mitochondrial DNA (mtDNA) polymorphism, major participation of matrilineages of taurus origin in the American Zebu purebred origin, i.e., 79, 73 and 100% for the Nellore, Gyr and Brahman breeds, respectively. Moreover, we have created a restriction map identifying polymorphism among B. taurus and B. indicus mtDNA using three restriction enzymes. Results are discussed concerning American Zebu origins and potential use of this information for investigating the contribution of cytoplasmic genes in cattle production traits.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000400013
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47571999000400013
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.22 n.4 1999
Fonte: | info:eu-repo/semantics/openAccess