ERIC技术在紫木耳亲缘关系鉴定上的应用研究
APPLICATION OF ERIC METHOD TO THE AFFINITY AMONG AURICULARIA STRAINS
温亚丽 曹晖 潘迎捷
摘 要:为了研究紫木耳与黑木耳和毛木耳之间的亲缘关系,利用ERIC分子标记、Southern杂交技术和形态学分类法,对紫木耳、黑木耳和毛木耳三者进行了详细的研究.在相似性系数为75%的水平上, 由ERIC所得的聚类图将7个菌株分为2组,即黑木耳自成一组,毛木耳和紫木耳为一组,两者相似性系数为77%.Southern杂交实验证明毛木耳和紫木耳之间存在较高的同源性.子实体的形态学特征表明紫木耳与毛木耳的亲缘关系较之黑木耳更为密切,同时进一步说明ERIC分子标记是准确可信的.本研究探讨了紫木耳的分类地位,认为在基因组进化上,紫木耳与毛木耳的关系较之黑木耳更为密切.
关键词:紫木耳,分类地位,形态学分类法,ERIC,Southern杂交
分类号:Q936 文献标识码:A
文章编号:1672-6472(2005)01-0053-0060
基金项目:上海市农业科学院发展基金项目
作者简介:曹晖,通讯作者 E-mail: syja5@saas.sh.cn,CAO Hui,Corresponding author. Tel:86-21-62208660-3222;Fax:86-21-62201337;E-mail: syja5@saas.sh.cn
作者单位:温亚丽(南京农业大学生命科学学院微生物系,江苏,210095;上海市农业科学院食用菌研究所,农业部食用菌遗传育种重点开放实验室,上海市农业遗传育种重点开放实验室,上海,201106)
曹晖(上海市农业科学院食用菌研究所,农业部食用菌遗传育种重点开放实验室,上海市农业遗传育种重点开放实验室,上海,201106)
潘迎捷(上海市农业科学院食用菌研究所,农业部食用菌遗传育种重点开放实验室,上海市农业遗传育种重点开放实验室,上海,201106)
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菌物学报
MYCOSYSTEMA
2005 Vol.24 No.1 P.53-60