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Polymorphism of SREBP1 is associated with beef fatty acid composition in Simmental bulls

Author(s): L. Xu*, L.P. Zhang*, Z.R. Yuan, L.P. Guo, M. Zhu, X. Gao, H.J. Gao, J.Y. Li and S.Z. Xu

The sterol regulatory element binding factor 1 gene (SREBP1) plays an important role in the biosynthesis of fatty acids and cholesterol, and in lipid metabolism. The objective of this study was to investigate the effect of genetic polymorphisms of SREBP1 on the fatty acid composition of muscle and carcass traits in Simmental bulls and Snow Dragon black cattle. The 84-bp insertion/deletion (indel) in intron 5 of the bovine SREBP1 gene was genotyped by polymerase chain reaction to investigate its associations with traits.