Mitochondrial DNA of Nellore and European x Nellore crossing cattle of high performance

The objective of this work was to evaluate, through a polymorphism in the ND5 gene of the bovine mitochondrial DNA, the frequency of Bos taurus indicus mtDNA individuals in a sample of Nellore purebred origin animals (n = 69) and crossbred animals originated from crosses of European sires and Nellore purebred origin females (n = 275). Only 2.26% (8/354) of the animals presented Bos taurus indicus mtDNA. The high frequency of Bos taurus taurus mtDNA in these animals can be a consequence of selection, once the animals studied are originated from selected lineages of high performance for meat production.

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Bibliographic Details
Main Authors: Curi,Rogério Abdallah, Mota,Lígia Souza Lima Silveira da, Silveira,Antônio Carlos
Format: Digital revista
Language:English
Published: Embrapa Secretaria de Pesquisa e Desenvolvimento 2007
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000800019
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