DNA Polymorphisms in SREBF1 and FASN Genes Affect Fatty Acid Composition in Korean Cattle (Hanwoo)

Autor: D. Yoon, S. L. Yu, N. K. Kim, Y. M. Cho, M. S. A. Bhuiyan, J. T. Jeon, E. W. Park, Jun Heon Lee, Kwan-Suk Kim
Rok vydání: 2009
Předmět:
Zdroj: Asian-Australasian Journal of Animal Sciences. 22:765-773
ISSN: 1976-5517
1011-2367
DOI: 10.5713/ajas.2009.80573
Popis: Sterol regulatory element binding factor 1 (SREBF1) and fatty acid synthase (FASN ) genes play an important role in the biosynthesis of fatty acids and cholesterol, and in lipid metabolism. This study used polymorphisms in the intron 5 of bovine SREBF1 and in the thioesterase (TE) domain of FASN genes to evaluate their associations with beef fatty acid composition. A previously identified 84-bp indel (L: insertion/long type and S: deletion/short type) of the SREBF1 gene in Korean cattle had significant associations with the concentration of stearic (C18:0), linoleic (C18:2) and polyunsaturated fatty acids (PUFA). The stearic acid concentration was 6.30% lower in the SS than the LL genotype (p A, g.18043C>T, g.18440G>A, g.18529G>A and g.18663C>T in the TE domain of the FASN gene were identified among the different cattle breeds studied. Among these, only g.17924 G>A and g.18663C>T SNPs were segregating in the Hanwoo population. The g.17924G>A SNP is a non-synonymous mutation (thr2264ala) and was significantly associated with the contents of palmitic (C16:0) and oleic acid (C18:1). The oleic acid concentration was 3.18% and 2.79% higher in Hanwoo with the GG genotype than the AA and AG genotypes, respectively (p A SNP of the FASN
Databáze: OpenAIRE
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