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采用聚丙烯酰胺凝胶电泳技术 ,对东乡野生稻 9个天然小群体进行了 15个等位酶位点的遗传多样性分析。结果表明 ,东乡野生稻具有较高的遗传变异水平 ,9个小群体的多态位点百分率 (P)为 2 8.2 % ,等位基因平均数 (A)为 1.30 6 ,预期杂合度 (He)为 0 .2 34;小群体间的分化程度不高 ,基因分化系数 (Gst)为 0 .0 12 ,等位酶测定的总变异中 ,1.2 %来自小群体间 ,其余的变异 (98.8% )来自小群体内。这些结果可以为东乡野生稻的保护提供依据
The polyacrylamide gel electrophoresis was used to analyze the genetic diversity of 15 isozyme loci in nine natural small populations of Dongxiang Wild Rice. The results showed that Dongxiang wild rice had a high level of genetic variation. The percentage of polymorphic loci (P) of 9 small groups was 2 8.2%, the average number of alleles (A) was 1.30 6, the expected heterozygosity (He) Was 0.2 2 34; the degree of differentiation among the small groups was not high, and the coefficient of Gst was 0.12. Among the total variation of allozyme determination, 1.2% came from the small population while the rest (98.8%) From a small group. These results can provide the basis for the protection of Dongxiang wild rice