Genetic variations of blood groups and biochemical polymorphisms in Jinhua pigs.

DOI JASI

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  • 金華豚（中国豚華中型）の血液型および蛋白質型特性

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Abstract

The genetic variations of blood groups and biochemical polymorphisms in Jinhua pigs, a Chinese pig breed, were investigated in this study as one of the attempts to investigate the genetic properties of the pig breed which is being brought into Japan in recent years. The blood samples were collected from eighteen (5 males and 13 females) of the pig breed which were introduced into four stations in Japan. Blood types investigated comprised eight blood groups (A, E, F, G, H, K, L and O), five serum proteins (Tf, Pa, Hp, Cp and Am), five red cell enzymes (PHI, 6PGD, PGM, ADA and EsD) and two serum allotypes (PSA-I and PSA-II), 20 loci in total.<br>The results were as follows.<br>1) There were no variations in F, G, K, L, Pa, Cp, Am, PHI, 6PGD, PGM, ADA, EsD and PSA-II loci, while the other seven loci were found polymorphic in Jinhua pigs. When the gene frequencies in Jinhua pigs were compared with those in Meishan, Taoyuan, Short-ear and Ohmini pigs, those in Jinhua pigs were characteristic in A, H, Am and 6PGD loci.<br>2) The genetic variability of Jinhua pigs analyzed by H. I., H, Ppoly and Ne was the lowest among the twelve different pig breeds studied (Jinhua, Meishan, Taoyuan, Short-ear, Ohmini, Göttingen, Pitman-Moore, Landrace, Large White, Hampshire, Duroc and Hypor).<br>3) Using the gene frequencies in the 20 loci, the genetic distances were calculated among twelve pig populations on the basis of the two formulae of Rogers and Nei, and the dendrogram showing genetic similarities among them was made. It was clarified from the dendrogram that Jinhua pigs belonged to Asian pig groups which were thoroughly different from Euro-American group, and was in a close distance to Meishan pig breed.

Journal

  • Nihon Yoton Gakkaishi

    Nihon Yoton Gakkaishi 27 (4), 202-208, 1990

    The Japanese Society of Swine Science

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