17 K. Srikanth E. Lee A. Kwon G. Jang H. Chung Journal of Animal and Plant Sciences JAPS 20182018/04/01 28 2 651-655 1018-7081 NA <p>The distribution and amount of intramuscular fat, collectively scored as marbling, is an economically important trait in beef cattle. Hanwoo (<em>Bos Taurus coreanae</em>) is the premium beef cattle in Korea.A previous GWAS analysis on Hanwoo had showed that an SNP located in the <em>CALN1</em> gene had a very strong association with Marbling. This SNP referred to as g.29172875A&gt;G, was genotyped on Hanwoo tissue samples (n = 1103) collected from throughout Korea. The genotype frequencies were 0.152, 0.439 and 0.408 for AA, AG and GG, respectively. The association study confirmed significant association with marbling (P &lt;0.0001) and loin eye muscle area (P = 0.001), with strong additive genetic effects. Significant departure from Hardy-Weinberg equilibrium was not detected. The findings suggest that the <em>CALN1</em> SNP polymorphism is strongly associated with marbling and loin eye muscle area and can be used as a robust marker for marker based selective breeding programs in Hanwoo.</p> Intramuscular Fat, CALN, SNP, Genetic association, Hanwoo Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2018-JAPS-238