Data/hora: 11/06/2024 17:01:08

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 17/03/2009
Data da última atualização: | 08/02/2024
Autoria: | AZEVEDO, A. L. S.; NASCIMENTO, C. S.; STEINBERG, R. S.; CARVALHO, M. R. S.; PEIXOTO, M. G. C. D.; TEODORO, R. L.; VERNEQUE, R. S.; GUIMARÃES, S. E. F.; MACHADO, M. A.
Afiliação: | Ana Luísa Sousa Azevedo, Embrapa Gado de Leite / UFV; C. S. Nascimento, UFV; R. S. Steinberg, UFMG; Maria Raquel Santos Carvalho, UFMG; Maria Gabriela Campolina Diniz Peixoto, Embrapa Gado de Leite; Roberto Luiz Teodoro, Embrapa Gado de Leite; Rui da Silva Verneque, Embrapa Gado de Leite; S. E. F. Guimarães, UFV; Marco Antônio Machado, Embrapa Gado de Leite.
Título: | Genetic polymorphism of the kappa-casein gene in Brazilian cattle.
Ano de publicação: | 2008
Fonte/Imprenta: | Genetics and Molecular Research, Ribeirão Preto, v. 7, n. 3, p. 623-630, 2008.
DOI: | https://doi.org/10.4238/vol7-3gmr428
Idioma: | Inglês
Conteúdo: | Frequencies of kappa-casein gene alleles were determined in 1316 animals from the Brazilian Bos indicus genetic groups (Sindhi cows, Gyr sires, Gyr cows, Guzerat sires, Guzerat cows, Nellore sires, and Gyr x Holstein crossbreds) by means of polymerase chain reaction-restriction fragment length polymorphism analysis using two independent restriction nucleases (Hinf I and HaeIII). The genotyping of kappa-casein alleles (A and B) is of practical importance, since the B allele is found to correlate with commercially valuable parameters of cheese yielding efficiency. The frequencies of the B allele of kappa-casein among breeds ranged from 0.01 to 0.30. The Sindhi breed had the highest frequency for the B allele (0.30), while the frequencies of this allele in other breeds ranged from 0.01 to 0.18. A wide variation in the B allele frequency among B. indicus breeds was found suggesting that molecular selection for animals carrying the B allele could impact breeding programs for dairy production.
Palavras-Chave: | Candidate genes; k-casein; Molecular markers; Zebu cattle.
Thesaurus Nal: | casein.
Categoria do assunto: | --
URL: | http://www.funpecrp.com.br/gmr/year2008/vol7-3//pdf/gmr428.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (16228-1) - UPC - AP - DD -  -  -  - DIS