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中国农学通报 ›› 2008, Vol. 24 ›› Issue (9): 376-381.

• 植物保护 农药 • 上一篇    下一篇

用多态位点率和香农指数分析的
飞蝗地理种群遗传多样性

张民照   

  • 收稿日期:2008-06-12 修回日期:2008-06-27 出版日期:2008-09-05 发布日期:2008-09-05

The Genetic Diversity of Geographical Populations of the Migratory Locust Analyzed with
the Percent of Polymorphic Loci and Shannon’s Index

Zhang Minzhao   

  • Received:2008-06-12 Revised:2008-06-27 Online:2008-09-05 Published:2008-09-05

摘要: 研究多态位点率和香农指数两种多样性参数所展示的飞蝗不同地理种群的遗传多样性。采用多态位点率和香农指数对飞蝗不同地理种群的RAPD数据进行了遗传多样性分析。飞蝗各种群平均多态位点率为59.17%-77.38%,平均香农指数为4.95-6.09。尽管两参数在不同引物之间存在极显著差异,但各种群的两参数之间的差异都不显著(p<0.05)。将香农指数分解为种群内和种群间两种水平的多样性,种群内多样性都比种群间的要大,平均所占比率分别为66.85%和23.15%,与用其他方法得到的结果类似。多态位点率和香农指数展示出中国飞蝗不同地理种群具较高的遗传多样性。两种多样性性参数分析RAPD数据来展示昆虫遗传多样性是可行的。

Abstract: To study the genetic diversity of different geographic migratory locust populations revealed by two different diversity parameters, the percent of polymorphic loci and Shannon’s index. The RAPD data of different geographic populations of migratory locust in China were analyzed with the percent of polymorphic loci and Shannon’s index. The average percent of polymorphic loci and the average Shannon’s index for the migratory locust populations in China varied from 59.17% to 77.38% and 4.95 to 6.09, respectively. Although there were significantly differences between the two indexes for some primers, the differences of the two indexes amongst the migratory locust populations were not significant (p<0.05). When the Shannon’s index was partitioned into two levels to analyze the genetic diversity of geographic populations of migratory locust, the average diversity within populations (66.85%) was much more than that between populations (23.15%), which was the same as those obtained with other methods. Highly genetic diversity in different geographical population of the migratory locust in China was revealed by the percent of polymorphic loci and Shannon’s index. Our results indicated that those two parameters were suitable to analyze RAPD data to reveal genetic diversity of insects.

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