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灵芝菌株的DNA指纹分析 被引量:8

DNA Fingerpinting Analysis of Ganoderma Strains
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摘要 CTAB法提取灵芝菌丝体总DNA,再以核糖体DNA转录间隔区(ITSⅡ、IGRⅠ-PCR RFLP)结合随机引物扩增多态性(RAPD)标记分析30个灵芝菌株间的亲缘关系。结果表明,ITSⅡI、GRⅠ-PCR RFLP产生了47条带,其中42条显示出多态性,通过聚类分析将30个菌株分成七大类,包括紫芝、黑灵芝、树舌灵芝、薄树灵芝四大类,以及另外三个无法确定具体归属的类群,但没能将赤芝与松杉灵芝区分开。RAPD从247个随机引物中筛选出8个随机引物,共检测到69个多态性位点并全部显示出多态性,通过聚类分析将供试的30个灵芝菌株全部区分开。 Total DNA of Ganoderma mycelium was extracted by the method of CTAB, and genetic relationships among thirty Ganoderma strains were analyzed based on ITS Ⅱ、 IGR Ⅰ -PCR RFLP and RAPD. The results showedthat 47 bands were obtained based on ITS Ⅱ, IGR Ⅰ -PCR RFLP, and 42 bands of them were polymorphic.Thirty strains were divided into seven species: Ganoderma sinense, Ganoderma atrum, Ganoderma applanatum, Ganaderma capense (Loyd) Teng and other three groups (their species are still unknown) through dendrograrn aralysis. Only 8 primers produced stable results among 247 random primers by RAPD. Total 69 loci were obtained by using 8 primers and all of them were polymorphie. Based on these 69 loci, thirty Ganodo-ma strains were differentiated.
出处 《食用菌学报》 2005年第3期7-13,共7页 Acta Edulis Fungi
基金 绿谷集团有限公司灵芝专项科研资金全额资助项目"灵芝菌种DNA鉴别"(项目编号:2003SHGV01) 福建省星火计划项目"福建食用菌集聚产业科技服务体系建设示范--食用菌种质资源库建设 分类与认定前期技术研究"(项目编号:2003EAT20021)的部分研究内容
关键词 灵芝 核糖体DNA转录间隔区 随机引物扩增多态性 Ganoderma Internal transcribed spacer(ITS) Rondom amplified polymorphic DNA(RAPD)
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