基于微卫星标记的桃蚜在烟草和甘蓝上的遗传多样性

Genetic Diversity of Myzus persicae in Tobacco and Cabbage Fields Based on Microsatellite Marker

为探究不同寄主上不同体色桃蚜的遗传分化特性,采用微卫星分子标记技术,对烟草和甘蓝上的桃蚜种群进行了遗传多样性研究。结果表明:以烟草为寄主的2个体色生物型种群之间的遗传关系近于以甘蓝为寄主的2个体色生物型种群,红色生物型种群之间的遗传关系近于绿色生物型种群,同时表明所用的桃蚜样品为不完全周期型类群。

The genetic diversity of M.persicae populations in tobacco and Chinese cabbage fields was analyzed by microsatellite marker technique to study genetic differentiation characteristics of M.persicae with different body color on different hosts.The results showed that the genetic relationship between two populations with different body color on tobacco was similar to that between two populations with different body color on Chinese cabbage and the genetic relationship between red populations was similar to that between green populations.The tested M.persicae sample belonged to the incomplete cycloid type.