Effects of CSN3 and LGB gene polymorphisms on production traits in beef cattle
Carregando...
Data
2005-12-01
Autores
Curi, Rogerio Abdallah [UNESP]
Oliveira, Henrique N. de [UNESP]
Gimenes, Marcos A. [UNESP]
Silveira, Antonio Carlos [UNESP]
Lopes, Catalina R. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The objective of the present study was to estimate the allele and genotype frequencies of the CSN3/Hinfl and LGB/HaeIII gene polymorphisms in beef cattle belonging to different genetic groups, and to determine the effects of these polymorphisms on growth and carcass traits in these animals, which are submitted to an intensive production model. Genotyping was performed on 79 Nelore, 30 Canchim (5/8 Charolais + 3/8 Zebu) and 275 crossbred cattle originating from the crosses of Simmental (n = 30) and Angus (n = 245) sires with Nelore females. Body weight, weight gain, dressing percentage, longissimus dorsi area and backfat thickness were fitted using the GLM procedure, and least square means of the genotypes were compared by the F test. The results showed that the CSN3/Hinfl and LGB/HaeIII polymorphisms did not have any effect on growth or carcass traits (p > 0.05). Copyright by the Brazilian Society of genetics.
Descrição
Palavras-chave
Beef cattle, Candidate gene, Polymorphisms, beta lactoglobulin, kappa casein, allele, gene frequency, gene locus, genetic polymorphism, genetic trait, genetic variability, homozygosity, polymerase chain reaction, restriction fragment length polymorphism, skinfold thickness, statistical analysis, statistical significance, Bos indicus, Bos taurus
Como citar
Genetics and Molecular Biology, v. 28, n. 2, p. 262-266, 2005.