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International Journal of Morphology

versión On-line ISSN 0717-9502

Resumen

INOSTROZA, K; LARAMA, G  y  SEPULVEDA, N. Fatty Acid Composition (MUFA and CLA) in Bovine Muscle Tissue Related with the Presence of the g.878TC SCD Gene Polymorphism. Int. J. Morphol. [online]. 2012, vol.30, n.3, pp.934-936. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022012000300028.

The muscle tissue of many domestic animals is a source of protein, fat and minerals to humans and consists of a series of structures that give nutritional and biochemical properties. In recent years it has identified a single nucleotide polymorphism (SNP) in the SCD gene (g.878TC), which influences the fatty acid composition in cattle. The aim of this study was to determine the presence of SNP g.878TC in Longissimus dorsi bovine (Bos taurus) using the PCR-RFLP. It was used a sample of 100 Aberdeen Angus steers raised and slaughtered in the region of Araucania (Chile). Polymorphism genotype frequency were: 0.33 for TT, 043 for CT and 0.24 for the CC genotype. The allelic frequency was 0.54 for the T allele and 0.63 for allele C. According to the fatty acid composition was determined that a positive relationship between genotype CC and the content of MUFA and CLA fatty acids present in the Longissimus dorsi muscle of Angus steers. Therefore, the SNP g.878TC could be considered as a genetic marker for selection of animals Aberdeen Angus, with a fatty acid composition more healthy.

Palabras clave : Muscle; Genetic markers; Lipids; Human health.

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