›› 2015, Vol. 42 ›› Issue (5): 1098-1103.doi: 10.16431/j.cnki.1671-7236.2015.05.010

• 生物技术 • 上一篇    下一篇

猪细环病毒2型环介导等温扩增检测方法的建立

张黎, 李凯, 田光玲, 李德峰, 王伟松, 何后军   

  1. 江西农业大学动物科学技术学院, 南昌 330045
  • 收稿日期:2014-11-17 出版日期:2015-05-20 发布日期:2015-06-02
  • 通讯作者: 何后军 E-mail:hehoujun@163.com
  • 作者简介:张黎(1991-),男,江西南昌人,硕士,研究方向:动物传染病及其病原学,E-mail:348474795@qq.com
  • 基金资助:
    2013年度江西省研究生创新专项资金(YC2013-S123)

Development of Loop-mediated Isothermal Amplification Assay for Detection of Torque teno sus Virus Type 2

ZHANG Li, LI Kai, TIAN Guang-ling, LI De-feng, WANG Wei-song, HE Hou-jun   

  1. College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China
  • Received:2014-11-17 Online:2015-05-20 Published:2015-06-02

摘要: 为了能快速、特异的检测猪细环病毒2型(TTSuV2),本研究针对TTSuV2全基因序列的非编码区域和第1个开放性阅读框前端设计了2对引物,建立了TTSuV2的环介导等温扩增(LAMP)检测方法并对反应成分和条件进行了梯度摸索。试验结果显示,该LAMP检测方法最佳反应条件为64 ℃恒温90 min,可特异性检测TTSuV2,与猪细环病毒1型、猪圆环病毒2型、猪瘟病毒、猪繁殖与呼吸综合征病毒和猪博卡病毒无交叉反应,病毒最低检出限为100拷贝/μL。结果表明,建立的LAMP方法具有快速、特异且灵敏的特点,可在TTSuV2快速检测方面提供一定的技术支持。

关键词: 猪细环病毒2型(TTSuV2); 环介导等温扩增; 检测

Abstract: In order to develop a loop-mediated isothermal amplification (LAMP) assay for rapid and specific detection of Torque teno sus virus type 2 (TTSuV2), two pairs of primers were designed according to the untranslated regions and the part of open reading frame 1 of TTSuV2.The LAMP system was optimized by adjusting the concentrations of some components and reaction conditions.The optimized amplification conditions of LAMP assay was at 64 ℃ for 90 min.The results showed the LAMP assay was specific for TTSuV2 detection, which could achieve a detection limit of 100 copies/μL viral nucleic acid, and no cross-reaction with TTSuV1, PCV2, CSFV, PRRSV and PBoV.In conclusion, this assay was a rapid, specific and sensitive detection technique which could provide a assistance for the rapid detection of TTSuV2.

Key words: Torque teno sus virus type 2 (TTSuV2); loop-mediated isothermal amplification (LAMP); detection

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