its1是18S rRNA基因与5.8S rRNA基因间的内转录1区(internal transcribed spacer-1, ITS-1)。
The internal transcribed spacer (ITS) region was amplified with the general primer (ITS1 and ITS4).
利用通用引物（ITS1和ITS4）扩增、克隆和测序了大孢指疫霉ITS区段。
METHODS ITS1 and ITS2 genes of Pogostemon Cablin from different localities were identified by PCR direct sequencing.
方法采用PCR直接测序技术对不同产地的广藿香its1和ITS2基因进行测序分析。
Maxium homology analysis proved that the ITS1 sequence of soybean was the most homologous to its counterpart of P. radiatus.
最大同源性分析表明，大豆属植物ITS1 的同源程度很高，同其近缘属绿豆的同源性明显高于其它作物。
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