Cytogenetic studies in cattle of the tropical and mantiqueira crossbreeds

Authors

  • Rita Maria Ladeira Pires Instituto de Zootecnia, Divisão de Técnica Básica e Auxiliar, Seção de Reprodução e Inseminação Artificial, Nova Odessa, SP
  • José Victor Oliveira Instituto de Zootecnia, Divisão de Técnica Básica e Auxiliar, Seção de Reprodução e Inseminação Artificial, Nova Odessa, SP
  • Terezinha Aparecida Martins Gomes de Castro Instituto de Zootecnia, Divisão de Técnica Básica e Auxiliar, Seção de Reprodução e Inseminação Artificial, Nova Odessa, SP
  • Wander Ramos Ribeiro Instituto de Zootecnia, Estação Experimental de Zootecnia de Pindamonhangaba, SP
  • Fernando Lima Pires Instituto de Zootecnia, Divisão de Zootecnia de Bovinos Leiteiros, Seção de Melhoramento de Gado Leiteiro, Nova Odessa, SP

Keywords:

cattle, cytogenetics, quimerism, chromosome Y

Abstract

Cytogentic studies were performed in 114 bovines Tropical and Mantiqueira breeds. In 33 bulls of the Tropical crossbreed, the cytogenetic analysis showed two types of Y chromosome. The submetacentric chromosome was present in 28 animals, and the acrocentyric one was present in 5 ones. In samples from 69 bulls of Mantiqueira there was only submetacentric chromosome. In one of the two (Tropical crossbreed) females studied it was observed quimerism 60,XX/60,XY.

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Published

2014-01-14

Issue

Section

GENETIC

How to Cite

Cytogenetic studies in cattle of the tropical and mantiqueira crossbreeds. (2014). Bulletin of Animal Husbandry, 51(2), 165-168. http://35.198.24.243/index.php/bia/article/view/807

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