›› 2015, Vol. 42 ›› Issue (12): 3111-3118.doi: 10.16431/j.cnki.1671-7236.2015.12.001

    Next Articles

Establishment and Application of LAMP Detection Method of Bovine Viral Diarrhea Virus

LI Jia-wei1,2, GUO Li1, YANG Yong1, WANG Jian-ke1, ZHANG Shu-qin1, ZHANG Jia-li2, CHENG Shi-peng1   

  1. 1. Key Laboratory for Molecular Biology of Special Economic Animals, Institute of Special Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China;
    2. Graduate School, Jilin Agricultural University, Changchun 130118, China
  • Received:2015-01-05 Online:2015-12-20 Published:2015-12-30

Abstract: Since the 5'UTR gene (GenBank No.:AY278459.1) had 4 isolated regions,we designed a set of 4 LAMP primers to specifically recognize target gene sequences.This study developed a loop-mediated isothermal amplification (LAMP) method for detecting BVDV,using the pyrophosphate magnesium white precipitate for Real-time detection in LAMP reaction process of turbidity instrument,Real-time monitor liquid turbidity to determine result.The whole reaction lasted only 50 minutes at a constructed temperature of 63 ℃ to evaluate specificity,sensibility and repeatability of the method.The result demonstrated that the LAMP assay could only react with BVDV,its specificity was high;It could detect at least 10-6-fold diluted samples,which was 100 more sensitive than PCR assay;And repeatability was good.The simple,rapid,high siensitivity and specificity LAMP assay was a potential tool for the detection of BVDV in field conditions.

Key words: bovine viral diarrhea virus (BVDV); loop-mediated isothermal amplification method (LAMP); PCR

CLC Number: