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Association Of A Bovine Chromosome 19 Region, 51 Mb, With The Variation Of Oleic Acid In Hanwoo

Monday, August 18, 2014
Posters (The Westin Bayshore)
JongJoo Kim , Yeungnam University, Gyeongsan, South Korea
Abstract Text:

Carcass samples of 450 Hanwoo steers were collected in the Livestock Research Institute, Ansung, Korea, to detect SNP markers that were significantly associated with oleic acid (C18:1). The bovine Affymetrix 640K beadchip array was used for the SNP genotyping to perform genome-wide association tests. Analyses were performed using the Bayes B model implemented in the Gensel software. Three chromosomal regions, 51Mb of BTA19, 9 Mb of BTA24, and 54Mb of BTA5 were detected for C18:1 with 21.7%, 3.7% and 1.5% of total genetic variance, respectively. At the BTA19 region, a SNP (C/T), AX-21950207 that was located at 51,333kb was detected with 96% posterior probability of inclusion, which was distal to the FASN gene location (51,385~51,404 Kb). Additional studies are needed to verify the SNP effect on oleic acid variability between Hanwoo carcasses and to find the causal mutation at the chromosomal region.

Keywords:

Hanwoo

Oleic acid

SNP

GWAS