ERIC技術在紫木耳親緣關系鑒定上的應用研究
APPLICATION OF ERIC METHOD TO THE AFFINITY AMONG AURICULARIA STRAINS
溫亞麗 曹暉 潘迎捷
摘 要:為了研究紫木耳與黑木耳和毛木耳之間的親緣關系,利用ERIC分子標記、Southern雜交技術和形態(tài)學分類法,對紫木耳、黑木耳和毛木耳三者進行了詳細的研究.在相似性系數(shù)為75%的水平上, 由ERIC所得的聚類圖將7個菌株分為2組,即黑木耳自成一組,毛木耳和紫木耳為一組,兩者相似性系數(shù)為77%.Southern雜交實驗證明毛木耳和紫木耳之間存在較高的同源性.子實體的形態(tài)學特征表明紫木耳與毛木耳的親緣關系較之黑木耳更為密切,同時進一步說明ERIC分子標記是準確可信的.本研究探討了紫木耳的分類地位,認為在基因組進化上,紫木耳與毛木耳的關系較之黑木耳更為密切.
關鍵詞:紫木耳,分類地位,形態(tài)學分類法,ERIC,Southern雜交
分類號:Q936 文獻標識碼:A
文章編號:1672-6472(2005)01-0053-0060
基金項目:上海市農(nóng)業(yè)科學院發(fā)展基金項目
作者簡介:曹暉,通訊作者 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
作者單位:溫亞麗(南京農(nóng)業(yè)大學生命科學學院微生物系,江蘇,210095;上海市農(nóng)業(yè)科學院食用菌研究所,農(nóng)業(yè)部食用菌遺傳育種重點開放實驗室,上海市農(nóng)業(yè)遺傳育種重點開放實驗室,上海,201106)
曹暉(上海市農(nóng)業(yè)科學院食用菌研究所,農(nóng)業(yè)部食用菌遺傳育種重點開放實驗室,上海市農(nóng)業(yè)遺傳育種重點開放實驗室,上海,201106)
潘迎捷(上海市農(nóng)業(yè)科學院食用菌研究所,農(nóng)業(yè)部食用菌遺傳育種重點開放實驗室,上海市農(nóng)業(yè)遺傳育種重點開放實驗室,上海,201106)
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菌物學報
MYCOSYSTEMA
2005 Vol.24 No.1 P.53-60