01433naa a2200229 a 450000100080000000500110000800800410001910000160006024501150007626000090019150001300020052006130033065000160094365000180095965300230097765300220100065300210102265300240104370000250106770000200109277300910111211227972023-03-30       2007    bl uuuu     u00u1 u    #d1 aCURI, R. A.  aMitochondrial DNA of Nellore and European x Nellore crossing cattle of high performanceh[electronic resource]  c2007  aNotas Científicas. Título em português: DNA mitocondrial de bovinos Nelore e cruzados Europeu x Nelore de alto desempenho.  aThe 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.  abeef cattle  aGado de Corte  aBos taurus indicus  aBos taurus taurus  aDNA polymorphism  apolimorfismo de DNA1 aMOTA, L. S. L. S. de1 aSILVEIRA, A. C.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 42, n. 8, p. 1203-1205, ago. 2007