黄淮山羊与长江三角洲白山羊遗传多样性研究

Study on Genetic Diversity of Huanghuai Goat and Yangtze River Delta White Goat

采用中心产区典型群随机抽样方法和多种电泳技术检测53只黄淮山羊、30只长江三角洲白山羊编码血液蛋白17个结构基因座上的变异,分析其遗传多样性。结果表明:黄淮山羊、长江三角洲白山羊结构基因座平均杂合度分别为0.0826和0.0899;平均多态信息含量分别为0.0699和0.0899;平均有效等位基因数分别为1.0000和1.1533。黄淮山羊与长江三角洲白山羊群体对于“东亚集团”的基因贴近度分别为0.8445、0.8981,对于“南亚集团”的基因贴近度分别为0.7440、0.8201,说明黄淮山羊群体与长江三角洲白山羊群体应属于“东亚山羊集团”。该研究结果符合山羊播迁的路线并与其地理分布相吻合。

With the method of ＂random sampling from the typical colonies of the central area of the habitat＂ and several electrophoresis techniques, the variations of 17 structural loci encoding blood proteins of 53 Huanghual（ HH ） goat and 30 Yangtze River Delta White（ YRD ） goat were examined and compared with those of 21 other goat populations in China and other countries to figure out their phylogenic relations. The average heterozygusities （ h ） of Huanghuai （ HH ） goat and Yangtze River Delta White （ YRD ） goat were 0.082 6 and 0.089 9, respectively. Their average polymorphic information contents（ PIC ） were separately 0.069 9 and 0.089 9. Their average effective numbers of alleles （ Ne ） were 1.000 0 and 1.153 3. The genetic approach degree of HH to the East Asian Group （EAG） was 0.844 5,meanwhile 0.744 0 to the South Asian Group （SAG）. At the same time, the values of YRD were 0.898 1 to the EAG and 0.820 1 to the SAG, respectively. It was obvious that HH goat population affiliated to the EAG at the genetic approach degree （0.844 5 ） which was greater than 0.744 0 and the adscription of HH goat population, to SAG. So the result that HH goat population affiliated to the EAG seemed quite reasonable. When it came to the Yangtze River Delta White （YRD） goat, the same conclusion was gotten and the degree that YRD goat population affiliated to EAG （0.898 1 ） was greater and than it to SAG （0.820 1 ）. The result that the two goat populations ascribed to the EAG was consistent to their geographical distribution and their breeding history.