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Position: Home > Articles > Reverse Transcription and 3'-Terminal Sequencing of the Bovine Viral Diarrhea Virus Special Wild Economic Animal and Plant Research 2010,32 (2) 12-15

牛病毒性腹泻病毒反转录及3'-末端克隆测序方法研究

作  者:
李庆超;苗利光;李海涛;刘艳环;张广雷;庄风岐
单  位:
吉林省桦甸市八道河子镇农村管理服务中心;中国农业科学院特产研究所;汀苏科技大学
关键词:
牛病毒性腹泻病毒;瘟病毒;反转录;3'-末端
摘  要:
牛病毒性腹泻病毒为黄病毒科瘟病毒属代表种,其基因组为单股正链RNA,无Poly(A)尾。传统的3'-末端快速扩增方法不适用于牛病毒性腹泻病毒的3'-末端克隆测序。本研究根据牛病毒性腹泻病毒基因组3'-末端共有特征碱基,设计回文锚定引物CGend。以BVDVJZ05-1毒株为研究对象,进行了反转录及3'-末端克隆测序。结果表明,CGend的反转录效果优于随机引物和一般特异性下游引物,并且扩增得到了JZ05-1的3'-末端完整序列。本研究为瘟病毒属病毒反转录和3'-末端克隆测序提供了新思路。
译  名:
Reverse Transcription and 3'-Terminal Sequencing of the Bovine Viral Diarrhea Virus
作  者:
LI Qing-chao1,MIAO Li-guang1,LI Hai-tao1,LIU Yan-huan1,ZHANG Guang-lei2,ZHUANG Feng-qi3(1.Institute ofSpecial Wild Economic Animals and Plants,CAAS,Jilin 132109,China;2.Jiangsu University of Science and Technology,Zhenjiang 212018,China;3.Rural Economics and Management Service Center of Badaohezi Town Huadian City,Jilin 132417,China))
关键词:
Bovine Viral Diarrhea Virus;Pestivirus;Reverse Transcription;3'-Terminal
摘  要:
Bovine viral diarrhea virus(BVDV)is a member of the genus Pestivirus.BVDV is containing a single positive-stranded RNA genome without poly(A)tail at 3'-terminal,so that the rapid amplification of cDNA ends method can not use directly to clone the 3'-terminal of BVDV genome.Consensus sequence CGn was found by multiple sequence alignment of 14 BVDV-2 entire genome sequences.Palindrome anchorage primer CGend was designed to reverse transcribing and amplifying the 3'-terminal of the BVDV JZ05-1 genome.RT-PCR amplification products using primer CGend were much better compared with the random primer control and downstream gene specific primer.The full long 3'-terminal sequence was cloned and sequenced.This simple and practicable method of reverse transcription and 3'-terminal sequencing may be useful in research of other Pestivirus.

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