【摘要】 CTAB法提取灵芝菌丝体总DNA，再以核糖体DNA转录间隔区(ITS Ⅱ、IGR Ⅰ-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：ITS Ⅱ、IGR Ⅰ-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、树舌灵芝、薄树灵芝、黑灵芝四大类，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。

    【关键词】 灵芝；核糖体DNA转录间隔区；随机引物扩增多态性

    DNA fingerprinting analysis of ganoderma strains

    LUO Lian-zhong, LIN Shu-qian, CHEN Jin-sheng,et al.

    Fuzhou Green Valley Institute of Bio-pharmaceutical Technology, Fuzhou 350003, China

    【Abstract】 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 showed that 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 atrum, Ganoderma applanatum, Ganoderma capense (Loyd),Teng and other three groups (their species are still unknown) through dendrogram analysis. Only 8 primers (starters) produced stable results among 247 random primers by RAPD. Total 69 loci were obtained by using 8 primers and all of them were polymorphic. Based on these 69 loci, thirty Ganoderma strains were differentiated. ......