海南三亚和黄淮海地区玉米小斑病菌致病性及遗传多样性分析

常佳迎,刘树森,石洁,郭宁,张海剑,马红霞,杨春凤

Pathogenicity and Genetic Diversity of Bipolaria maydis in Sanya, Hainan and Huang-Huai-Hai Region

JiaYing CHANG,ShuSen LIU,Jie SHI,Ning GUO,HaiJian ZHANG,HongXia MA,ChunFeng YANG

表3 玉米小斑病菌不同地理种群的遗传多样性水平

Table 3 Genetic diversity parameters among different geographic populations of B. maydis

多态性位点 Number of polymorphic loci 多态性比率 Polymorphism percent (%) 观察等位基因数 Observed number of alleles (Na) 有效等位基因 Effective number of alleles (Ne) 基因多样性指数Nei’s gene diversity index (H) Shannon’s信息指数 Shannon’s information index (I) 河北HB 127 71.75 1.7175 1.4930 0.2783 0.4072 河南HN 100 56.50 1.5650 1.3822 0.2137 0.3134 山东SD 75 42.37 1.4237 1.3060 0.1717 0.2505 三亚SY 121 68.36 1.6836 1.4186 0.2437 0.3637 群体水平 Population level 140 79.10 1.7910 1.4904 0.2820 0.4197