中国与北美大陆的高卢蜜环菌系统发育分析  

Phylogenetic analysis of Armillaria gallica from North America and China

作　　者：孙立夫[1] 张艳华[1] 裴克全[2] 杨国亭[3] 宋玉双[4] 宋瑞清[3] 

机构地区：[1]绍兴文理学院生命科学学院,浙江绍兴312000 [2]中国科学院植物研究所生态中心,北京100093 [3]东北林业大学林学院,黑龙江哈尔滨150040 [4]国家林业局森林病虫害防治总站,辽宁沈阳110034

出　　处：《菌物学报》2012年第2期174-186,共13页Mycosystema

基　　金：浙江省自然科学基金(No.Y3090409);哈尔滨市青年科学基金(No.2002AFQXJ006)

摘　　要：在中国和北美大陆分别收集53和15株高卢蜜环菌Armillaria gallica菌株,并用ISSR(inter-simple sequence repeat)分子标记对这些菌株进行了亲缘关系及系统发育分析。结果表明:中国和北美大陆的A.gallica因地理隔离产生明显的遗传分异,在系统发育树上分别形成了各自的进化分支;北美大陆的分支内部遗传分化尚不明显,而中国的进化分支遗传分化程度相对较大且更为古老,中国菌株可能是两个大陆A.gallica的祖先株系。Fifteen and 53 isolates of Armillaria gallica were collected respectively in North America and China.The phylogeny and genetic relationship of these isolates were analyzed by ISSR-PCR.The results indicated that isolates of North America and those of China showed obvious genetic differentiation caused by geographic isolation,forming different clades in the phylogenetic tree.The genetic differentiation within North American clade was not obvious,but the differentiation within Chinese clade was clear and more ancient.Chinese isolates might be the ancestry of A.gallica in the two continents.

关 键 词：系统发育树 遗传多样性 地理隔离 

分 类 号：Q949.32[生物学—植物学]