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ITS Sequence Comparison of Germplasm Resources of Auricularia polytricha
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
- Issue:
- 2
- DOI:
- 10.3321/j.issn:1006-687X.2007.02.005
- Key Word:
- 毛木耳;ITS;序列;系统发育
Abstract： 对毛木耳7个菌株rRNA基因内转录间区(ITS)进行了克隆测序,并将其与木耳属其它几种的相应序列进行了比较.在供试的7个毛木耳菌株中,除特大(209 bp)外,其余6个菌株的ITS2区序列长度完全相同;毛木耳rRNA基因的两个ITS区序列有一定数量的碱基变异,整个ITS区共有11个变异位点.与下载的木耳属另外4个种相比较,均有较大程度的变异.根据遗传同源性分析,遗传距离分析和系统树上所显示的供试菌株及相关已知种的亲缘关系,ITS序列分析支持传统的依据形态学进行的木耳属分类.图2表2参9
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