摘要
用CTAB法提取美味侧耳基因组DNA,利用引物ITS1和ITS4扩增其核糖体DNA的ITS片段,凝胶回收试剂盒纯化目的片段。通过PCR产物双向直接测序和克隆测序分别获得其rDNAITS序列,对两种测序方法所得序列及GenBank中美味侧耳ITS片段的序列进行比较分析。结果显示,三条序列的差异非常小,两种测序方法所得序列仅在两端出现差异,序列内部完全一致。
Genomic DNA was obtained from Pleurotus sapidus using CTAB extraction. The nuclear ribosomal ITS was amplified with primers ITS1 and ITS4, and PCR products were purified with a Wizard PCR purification kit. Sequences of ITS obtained by direct sequencing are the same as that of the cloned sequencing except little difference at the both ends of ITS.
出处
《食用菌学报》
2005年第1期1-4,共4页
Acta Edulis Fungi
