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Position: Home > Articles > Cloning of Lily symptomless virus CP Gene and Construction of Its RNAi Vector Acta Horticulturae Sinica 2009,36 (6) 885-890

百合无症病毒CP基因的克隆及其RNAi载体的构建

作  者:
徐品三;尹雅蕾;李玉花
单  位:
东北林业大学生命科学学院;大连理工大学环境与生命学院
关键词:
百合;无症病毒;CP基因;克隆载体;RNA干扰;Gateway技术
摘  要:
以感染百合无症病毒(LSV)的百合叶片总RNA为模板,利用反转录聚合酶链式反应(RT-PCR)扩增出了876bp的LSV CP基因,经Blast比对发现该片段与GenBank上发表的LSVCP基因序列高度同源,同源率98%,由该序列推导出的氨基酸序列相似性达到98%。应用Gateway技术将扩增的片段通过BP反应连接到入门载体pDONR201,并进行序列测定,再通过LR反应将目的片段插入到RNAi植物表达载体pH7GWIWG2(Ⅱ),成功构建了适合农杆菌介导的百合转化的RNAi载体。
译  名:
Cloning of Lily symptomless virus CP Gene and Construction of Its RNAi Vector
作  者:
XU Pin-san1,YIN Ya-lei1,and LI Yu-hua2(1School of Environmental and Biological Science and Technology,Dalian University of Technology,Dalian,Liaoning 116024,China; 2College of Life Sciences,Northeast Forestry University,Harbin 150040,China)
关键词:
lily; Lily symptomless virus; CP gene;cloning vector;RNA interference;Gateway technology
摘  要:
A fragment of 876 bp of Lily symptomless virus (LSV) CP gene cDNA sequence was amplified by reverse transcription polymerase chain reaction (RT-PCR) from the total RNA infected lily leaves. The Blast result showed that the sequence presented a very high match with the LSV CP genes in the GenBank and its homology was 98%. The amino acid sequence was 98% homologus. Using Gateway technology,a entry clone vector(pDONR201)was constructed through the way of BP cloning and a RNA interference (RNAi) transformation vector(pH7GWIWG2)was constructed through the way of LR cloning. The RNAi vector was obtained and could be transformed into lily by Agrobacterium tumefaciens.

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