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pp.1-7
The ANK1 (Ankyrin-1) gene, located on the bovine chromosome 27, encodes a structural protein which forms an important component of the cytoskeleton. Ankyrin belongs to a protein family that links membrane proteins to the underlying spectrin-actin cytoskeleton. Many studies on gene expression regulation have revealed that RNA polymerase binds to the ANK1 gene promoter region. The purpose of the present study was to investigate the relationship between the SNP of the ANK1 promoter region and economic traits in Hanwoo cattle. A total of seven SNPs (C-944T, C-733T, C-687G, A-672G, C-307T, A-104G, C-24T), found in 119 animals, were correlated to economic traits. One of these SNPs, A-104G, was reported for the first time in the present study. Three newly discovered haplotypes were not associated with economic traits. Significant (p<0.05) relationships were found between C-944T and carcass weight, backfat thickeness, loin muscle area and between C-733T, A-672G and intramuscular fat. These results suggest that the SNPs of ANK1 gene may be useful molecular markers for selection of meat yield and quality traits in Hanwoo
