浙江农业学报

• 园艺科学 • 上一篇    下一篇

昆明野生鲍鱼菇的ITS分子鉴定

  

  1. (西南林业大学 生命科学学院,云南 昆明 650224)
  • 出版日期:2014-09-25 发布日期:2014-10-11

Molecular identification of wild Pleurotus abalonus from Kunming by rDNA ITS sequences

  1. (College of Life Sciences, Southwest Forestry University, Kunming 650224, China)
  • Online:2014-09-25 Published:2014-10-11

摘要: 鲍鱼菇口感特殊,味道鲜美,营养价值高,但产量稀少。传统的形态特征进行的分类鉴定常常带有一定的局限性和主观性,采集的野生鲍鱼菇的真实性需要进一步鉴定。文章采用一对通用引物ITS1和ITS4对野生鲍鱼菇子实体样本及其组织分离菌株的rDNA ITS片段进行PCR扩增,并克隆测序。通过GenBank数据库搜索和系统发育树构建来进行分子鉴定。结合形态特点的分析,结果显示采集的野生菇样本就是鲍鱼菇。ITS序列在鲍鱼菇不同菌株的鉴定上具有重要的价值。

关键词: 克隆测序, 分离, ITS序列

Abstract: Pleurotus abalonus has a high nutritional value, with a very special and delicious taste. But its output is very low. There are some limitations and subjectivities to its classification and determination in terms of traditional morphological features, so that the collected wild P. abalonus should be further identified for its reality. In the study, the rDNA ITS sequences of the fruiting bodies and their isolates of wild P. abalonus were amplified via PCR using ITS1 and ITS4 as primer pairs. And their sequences were sequenced by clone sequencing. Molecular identification was carried out by GenBank search and ITS phylogenetic tree analysis. Combined with analysis of morphological features, the results showed that the collected wild mushroom was P. abalones. The work indicated important value of ITS sequence in identification of the different strains of mushroom.

Key words: clone sequencing, isolate, ITS sequence