Título:	Cytogenetic analysis of the Y chromosome of native Brazilian bovine breeds: preliminary data.
Autoria:	ISSA, E. C. JORGE, W. EGITO, A. A. do SERENO, J. R. B.
Afiliação:	E. C. ISSA, UNIVERSIDADE FEDERAL DE GOIÁS W. JORGE, UNIVERSIDADE FEDERAL DE MINAS GERAIS ANDREA ALVES DO EGITO, CENARGEN JOSE ROBSON BEZERRA SERENO, CPAC.
Ano de publicação:	2009
Referência:	Archivos de Zootecnia, v. 58, n. 221, p. 93-101, 2009.
Conteúdo:	The present work is a preliminary cytogenetic study carried out on 29 males of the Brazilian breeds Curraleiro, Crioulo Lageano, Junqueira and Pantaneiro, available at Embrapa Genetic Resources & Biotechnology, Brasília, DF and Promissão farm, Poconé, MT. The objective was to investigate their Y chromosome morphology, whether submetacentric or acrocentric, considered as markers of the taurine and zebuine subspecies, respectively. The results showed that of the six Curraleiro animals analyzed, four had an acrocentric and two had a submetacentric Y chromosome, indicating contamination by zebu breeds. All Pantaneiro bulls analyzed had exclusively zebuine (acrocentric) Y chromosome. On the other hand, the Crioulo Lageano and Junqueira bulls had submetacentric Y chromosomes, indicating their taurine origin.
Thesagro:	Bos Taurus
NAL Thesaurus:	Animal genetic resources Cytogenetics Y chromosome Chromosome morphology
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CENARGEN)