畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (9): 1474-1480.doi: 10.11843/j.issn.0366-6964.2014.09.013

• 预防兽医 • 上一篇    下一篇

牛病毒性腹泻病毒E2基因在烟草中的表达

王盛,谢芝勋*,范晴,谢丽基,邓显文,黄莉,谢志勤,刘加波,庞耀珊,罗思思   

  1. (广西壮族自治区兽医研究所 广西畜禽疫苗新技术重点实验室,南宁 530001)
  • 收稿日期:2014-04-09 出版日期:2014-09-23 发布日期:2014-09-23
  • 通讯作者: 谢芝勋,研究员,E-mail:xiezhixun@126.com
  • 作者简介:王盛(1987-),女,山西晋中人,硕士,主要从事植物基因工程的研究,Tel:0771-3120371,E-mail:wangsheng1021@126.com
  • 基金资助:

    广西科技重大专项(1222003-2);广西特聘专家专项(2011B020);桂科专项(13-3);广西自然科学基金(2012GXNSFAA053074)

Expression of E2 Gene of Bovine Viral Diarrhea Virus in Tobacco

WANG Sheng,XIE Zhi-xun*,FAN Qing,XIE Li-ji,DENG Xian-wen,HUANG Li,XIE Zhi-qin,LIU Jia-bo,PANG Yao-shan,LUO Si-si   

  1. (Guangxi Key Laboratory of Animal Vaccines and Diagnostics,Guangxi Veterinary Research Institute,Nanning 530001,China)
  • Received:2014-04-09 Online:2014-09-23 Published:2014-09-23

摘要:

研究牛病毒性腹泻病毒(BVDV)的囊膜糖蛋白E2基因在烟草中表达及其表达产物的反应原性。根据GenBank中BVDV的基因序列设计特异引物,构建含有E2基因的植物表达载体pBI121-E2,农杆菌介导的叶盘法转化烟草,卡那霉素筛选获得抗性植株。结果显示:通过PCR扩增和real-time PCR方法检测获得5株低拷贝的转E2基因的烟草。Western blot检测显示烟草中表达的E2蛋白可以被牛病毒性腹泻病毒的阳性血清识别,具有反应原性。本研究为利用植物作为生物反应器生产E2口服疫苗的研发与应用奠定了基础。

Abstract:

The current study was undertaken to study expression of E2 gene of bovine viral diarrhea virus (BVDV) in tobacco and to analyze reactionogenicity of the expressed products.A pair of primers was designed according to the major antigen region of the E2 gene derived from GenBank.The plant constitutive expression vector pBI121-E2 containing E2 gene was constructed,and was then transformed into tobacco plants via Agrobacterium tumefaciens.The transgenic anti-type tobacco plants were screened by screening with kanamycin.PCR amplification and real-time PCR analysis indicated that the E2 gene has been a low-copy in five tobacco plants.Western bolt analysis showed that the E2 protein could be specifically recognized by anti BVDV positive serum.Our study provides a basis for further analysis on plants as bioreactors development and the production of E2 oral vaccines.

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