육우의 유전적 표식로서 생화학적 유전형질의 다형현상에 관한 연구 1 . 혈액단백질 및 효소의 유전적 다형현상 = Studies on Biochemical Polymorphisms as Genetic Markers in Beef Cattle 1 . Genetic polymorphisms of blood protein and enzyme

다국어 초록 (Multilingual Abstract)

Biochemical polymorphic loci of blood protein and enzymes, albumin(Al), trans ferrin(Tf), hemoglobin(Hb), amylase-1(Am-1), carbonic anhydrase(CA) and ceruloplasmin(Cp), as genetic markers for three imported beef cattle breeds (131 Angus, 130 Hereford and 56 Charolais) in Korea were analyzed by using starch gel electrophoresis. The genotype distributions and gene frequencies from the phenotypes were estimated at these loci for each breed. At the A1 locus, gene frequencies of Al^A and Al^B were 1.00 and 0.00 for Angus, 0.99 and 0.11 for Hereford and 0.96 and 0.04 for Charolais, respectively. Gene frequencies of Tf^A, Tf^D1 , Tf^D2 and Tf^E in Tf^E locus were 0.485, 0.111, 0.216 and 0.278 for Angus, 0.422, 0.355, 0.215 and 0.008 for Hereford and 0.232, 0.527, 0.233 and 0.018 for Charolais, respectively. Gene frequencies of Hb^A and Hb^B in Hb locus were estimated to be 1.00 and 0.00 for Angus and Hereford, and 0.837 and 0.163 for Charolais, respectively. Gene frequencies of Am^A, Am^B and Am^C in Am locus were estimated to be 0.035, 0.328 and 0.637 in Angus, 0.070, 0.440 and 0.490 in Hereford and 0.540, 0.491 and 0.455 in Charolais, respectively. In CA locus, the frequencies of gene CAF and CAS were found to be 0.103 and 0.897 for Angus, 0.165 and 0.835 for Hereford and 0.577 and 0.423 for Charolais, respectively. Gene frequencies of Cp^F and Cp^S in Cp locus were 0.637 and 0.363 in Angus, 0.640 and 0.160 in Hereford and 0.938 and 0.062 in Charolais, respectively. In comparing the gene frequencies of each locus among three breeds, significant differencies in the gene frequencies between Angus and Charolais were found in all loci examined. Also, significant differencies in the gene frequencies of the Tf, Am, CA and Cp loci except for Al and Hb loci were recognized between Angus and Hereford and between Hereford and Charolais, respectively. Consequently, it was found that there were marked differences in the genetic constitution between beef cattle breeds.