Investigation of genetic variability in the Mantiqueira herd through protein polymorphism. II. Estimation of racial composition

Authors

  • Maria Aparecida Cassiano Lara Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Genética e Reprodução Animal, Nova Odessa, SP
  • Eucleia Primo Betioli Contel Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Genética, Ribeirão Preto, SP

Keywords:

Mantiqueira cattle, racial admixture, protein polymorphism

Abstract

The aim of this study was to evaluate the racial composition of the Mantiqueira herd, belonging to Estação Experimental de Zootecnia de Pindamonhangaba. The estimation of the racial admixture was achieved by MISTURA2 and MISTURA3 programs contained in GENIOC, that adopts the Maximum Likelihood Method. The genic frequencies for Hb, CA, Pep-B, Ain-I, Tf and Alb obtained from Holstein, Caracu Caldeano, and Gir breeds and the respective number of phenotypes observed in the Mantiqueira herd, were utilized for this purpose. In accordance with historical records that indicate an hybrid origin of the Mantiqueira cattle, these breeds were employed as possible ancestral of this cattle. The results suggest that the genomic constitution of Mantiqueira herd is approximately 52% of genes from Holstein and 48% from Caracu. Nevertheless, we may raise the hvpothesis that Spanish breeds also contributed to the Mantiqueira herd, because of the occurrence of the allele Pep-B3, that is possibly a genetic marker of those breeds.

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Published

2013-12-05

Issue

Section

GENETIC

How to Cite

Investigation of genetic variability in the Mantiqueira herd through protein polymorphism. II. Estimation of racial composition. (2013). Bulletin of Animal Husbandry, 54(1), 21-24. http://bia.iz.sp.gov.br/index.php/bia/article/view/972

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