江苏五大稻区稻瘟病菌的群体遗传结构研究  

Population structure and genetic diversity of Magnaporthe grisea from rice in Jiangsu Province

作　　者：周益军[1] 程兆榜[1] 范永坚[1] 陈毓苓[1] 张文荟[1] 

机构地区：[1]江苏省农业科学院植物保护研究所,南京210014

出　　处：《安徽农业大学学报》2007年第4期469-473,共5页Journal of Anhui Agricultural University

基　　金：国家支撑计划(2006BAD02A16;2006BAD08A04);农业部948项目(2006G61);国家自然科学基金(39870429);江苏省自然科学基金(Bk2001178)共同资助

摘　　要：用Pot2-rep-PCR方法测定了江苏省五大稻区稻瘟病菌(Magnaporthe grisea)的DNA指纹图谱,在此基础上分析了江苏各稻区稻瘟病菌的遗传系谱及群体结构,揭示了病菌遗传系谱与品种之间的关系和在不同稻区的分布,研究了病菌系谱年度间的变化动态,为指导抗病品种应用和抗病育种提供依据。Seventeen genetic lineages of M. grisea were measured by Pot2- rep-PCR fingerprints. Among them, JSL-11 is dominant lineage in Jiangsu Province. Variation of M. grisea lineages from rice in Jiangsu Province was not obvious from 1997 to 1999. Distribution ofM. grisea lineages had some differences in different rice-planted regions of Jiangsu Province,but they were related with the distribution of rice varieties. It is suggested that population structure and distribution of M. grisea lineages is favorable for guiding breeding and application of resistance rice varieties.

关 键 词：稻瘟病菌 品种 类群结构 遗传多样性 变异动态 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]