›› 2017, Vol. 44 ›› Issue (2): 311-318.doi: 10.16431/j.cnki.1671-7236.2017.02.002

Previous Articles     Next Articles

Development and Application of Two-temperature RT-PCR for Detectionof Type O Foot and Mouth Disease Virus

YAO Huai-bing1,2, ZHAO Yi3, LIU Hong3, ZHANG Yi3, REN Fang3, HUANG Jiong2   

  1. 1. College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Institute of Veterinary Medicine, Xinjiang Academy of Animal Sciences, Urumqi 830000, China;
    3. Tecon Bio-technology Co., Urumqi 830000, China
  • Received:2016-07-21 Online:2017-02-20 Published:2017-02-25

Abstract:

According to the gene sequences analysis of foot and mouth disease virus (FMDV) in GenBank,a pair of specific primers was designed in the conserved sequence of type O FMDV P1 gene. The reaction parameters were optimized using the uniform design method to develop a two-temperature RT-PCR method for detection of type O FMDV.The results of sensitivity and specificity showed that the two-temperature RT-PCR method was only specific for type O FMDV without amplification of the other viruses. The amplified fragment was same with the expected length.The cloning and sequencing results revealed that the sequence of amplified fragment had 100% simililarity to the target sequence,and the minimum detection quantity was 1.665 pg/μL,the effective detection rate was consistent with the three step RT-PCR sensitivity test results. 54 taper toxicity test pigs were detected,and positive identification results and three-step PCR results was consistent.Compared with the three-step PCR,it could save 20 min.These results indicated that the developed two-temperature RT-PCR for detection of type O FMDV was a kind of accurate,rapid,specific and sensitive detection method.

Key words: type O foot and mouth disease virus; two-temperature RT-PCR; detection method

CLC Number: