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甘肃甘南野生羊肚菌遗传多样性研究
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摘要
羊肚菌(Morchella spp.)是一类珍稀食用和药用真菌,具有重要的经济和科研价值。由于该物种形态特征具有高度的多变性,仅靠传统的形态学特征基本无法准确辨别。本文基于自2012年~2015年间赴甘肃甘南境内采收到的16份野生羊肚菌标本进行ITS基因标记筛选,研究发现16份供试材料共归纳为5种,分别为黑脉羊肚菌(M.angusticeps),羊肚菌(M.esculenta),高羊肚菌(M.elata),粗腿羊肚菌(M.crapssipes)和尖顶羊肚菌(M.conica)。此外,基于最大简约法(Maximum Parsimony)和邻接法(Neighbor Joining)构建的分子进化树得知,这5种羊肚菌主要归类于黄羊肚菌类群(Yellow morels group)和黑羊肚菌类群(Black morels group)。
As one group of the world's most prized edible and medicinal fungi,Morchella spp.are very important economic and scientific values.Because the morphological characteristics of these species has a high variability,it is unable to accurately identify morphological features.according to traditional method.In this paper,16 strains of wild Morchella spp.which collected in Gannan of Gansu province from 2012 to 2015 were researched based on ITS sequences.The result showed that 16 strains of wild Morchella spp.were classified 5 species.There were M.angusticeps,M.esculenta,M.elata,M.crapssipes,M.conica.In addition,according to the molecular phylogenetic trees which were constructed by Maximum parsimony method & Neighbor joining method.These kinds of 5 species were respectively belonged to yellow morels group & black morels group.
引文
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