玉米穗腐病致病禾谷镰孢复合种的遗传多样性、致病力与毒素化学型分析

王宝宝,郭成,孙素丽,夏玉生,朱振东,段灿星

The Genetic Diversity, Pathogenicity, and Toxigenic Chemotypes of Fusarium graminearum Species Complex Causing Maize Ear Rot

WANG BaoBao,GUO Cheng,SUN SuLi,XIA YuSheng,ZHU ZhenDong,DUAN CanXing

表2 禾谷镰孢复合种的遗传多样性

Table 2 Genetic diversity of FGSC

种群 Population 多态性位点数 Number of polymorphic loci 多态性位点百分比 Percentage of polymorphic loci (%) 等位基因数 Observed number of alleles 有效等位基因数 Effective number of alleles Shannon’s信息指数 Shannon’s information index Nei’s遗传多样性指数 Nei’s genetic diversity index 华北North China 18 46.15 1.46 1.46 0.32 0.23 华中Central China 10 25.64 1.26 1.26 0.18 0.13 华东East China 14 35.90 1.36 1.36 0.25 0.18 东北Northeast China 39 100.00 2.00 1.79 0.62 0.43 华南South China 26 66.67 1.67 1.46 0.40 0.27 西北Northwest China 37 94.87 1.95 1.65 0.55 0.37 西南Southwest China 36 92.31 1.92 1.71 0.56 0.39 平均Average 25.71 66.00 1.66 1.53 0.41 0.29