自然科学版
陕西师范大学学报(自然科学版)
生命科学
秦岭东段流岭山区羊肚菌的分子鉴定
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和晓娜1, 李峻志2, 李书兰1, 戴璐2, 杨章民1*
(1 陕西师范大学 生命科学学院, 陕西 西安 710062; 2 陕西省微生物研究所, 陕西 西安 710043)
和晓娜,女,硕士研究生,主要研究方向为应用微生物. E-mail:482xiaona@163.com.*通信作者: 杨章民,男,副教授,博士.E-mail:yzhangmin@snnu.edu.cn.
摘要:
分离了秦岭东段流岭山区8株羊肚菌的纯菌丝体,分别提取其基因组DNA,并扩增其rDNA的内转录间隔区序列(Internal transcribed sequence, ITS),用基于核糖体ITS序列的分析法对其分类进行了确定.结果表明,经序列分析比对,分子鉴定出这8株羊肚菌分别为高羊肚菌(Morchella elata)、尖顶羊肚菌(Morchella conica)和羊肚菌(Morchella esculenta).系统进化树结果提示,3种羊肚菌中,高羊肚菌(Morchella elata)和尖顶羊肚菌(Morchella conica)的亲缘关系较近.
关键词:
羊肚菌; 秦岭; ITS区
收稿日期:
2011-10-14
中图分类号:
Q939.5
文献标识码:
A
文章编号:
1672-4291(2012)05-0068-04
基金项目:
陕西省自然科学基金资助项目(SJ08C102).
Doi:
Molecular identification of Morchella sp. from Liuling region of east Qinling Moutain
HE Xiao-na1, LI Jun-zhi2, LI Shu-lan1, DAI Lu2,YANG Zhang-min1*
(1 College of Life Science, Shaanxi Normal University, Xi′an 710062,Shaanxi,China; 2 Shaanxi Institute of Microbiology, Xi′an 710043,Shaanxi,China)
Abstract:
To isolate the Morel mycelium of 8 strains from Liuling region of east Qinling Moutain. The genomic DNA of each strain was extracted,and the internal transcribed sequence(ITS) of rDNA was amplified by PCR. Their taxonomic status were identified based on ribosomal ITS sequences. By bioinformatic analysis of these sequences, the results showed that these strains were identified as Morchella elata, Morchella conica and Morchella esculenta. The constructed molecular phylogenetic tree suggested that among the three morel species, there was a close relationship between Morchella elata and Morchella conica.
KeyWords:
Morchella; east Qinling Moutains; Internal transcribed sequence(ITS) region