核糖体DNA ITS区应用于虫草属无性型鉴定的初步研究  

Preliminary study of identification to anamorph of Cordyceps by using its sequences of nrDNA

作　　者：凌建亚[1] 彭俊峰[1] 张晗星[1] 张长铠[1] 

机构地区：[1]山东大学微生物技术国家重点实验室,山东济南250100

出　　处：《山东大学学报（理学版）》2003年第3期117-122,共6页Journal of Shandong University(Natural Science)

摘　　要：虫草无性型鉴定是困扰学术界的一个难题 .本文检索了互联网上报道的虫草及可能的无性型序列 ,应用相关软件构建进化树 ,研究了它们的同源性 .从总体上看 。The configuration of anamorph of Cordyceps has the academic and practical importance. Phylogenetic Relationship among the genus Cordyceps and its probable anamorph were examined by using ITS region sequences of nrDNA. The data consisted of 25 sequences for 11 taxa were aligned by Clustal X, a free multiple sequence alignment software, analyzed by neighbor-joining (NJ) tree, and valued by Bootstraping method. The homology results indicated that the sequence difference within ITS region could provide an additional characteristic for identification to anamorph of the genus Cordyceps.

关 键 词：虫草 无性型 ITS区 同源性 

分 类 号：Q939.96[生物学—微生物学]