›› 2014, Vol. 41 ›› Issue (9): 35-40.

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Establishment of Loop-mediated Isothermal Amplification Assay Detection Method of Equine Herpesviruses Type 1

YANG Yi-ping, LIU Jian-hua, RAN Duo-liang, XU Quan-yuan, LI Na, Jiaerken   

  1. College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2014-01-15 Online:2014-09-20 Published:2014-09-24

Abstract: The objective of this study was to establish a rapid detection method of loop-mediated isothermal amplification assay (LAMP) for equine herpesvirus-1 (EHV-1) and evaluate the reliability of the method. Designing several pairs of LAMP primers targeting to the conserved sequence of gBgene of EHV-1, using the LAMP Real Time Turbidimeter LA-320 meter to monitor the reaction so as to screen the primers and optimize the conditions, we established a LAMP method which could amplify specific DNA of EHV-1, then added SYBR Green Ⅰ to judge the result by eye. Specific DNA of EHV-1 was amplified efficient under 65 ℃ in 50 min. There was no cross reaction to other similar viruses such as EHV-4, and the reaction system also had very high sensitivity, 10-4 dilution multiple target could be detected, the established LAMP was 10 times higher than ordinary PCR. After the reaction, add SYBR Green Ⅰ to observe results, the results were consistent with LAMP Real Time Turbidimeter LA-320 meter. Compared LAMP method result with PCR method result of four clinical samples, coincidence rate was 100%. The LAMP method in this test was rapid, specific, sensitive, easy operation and low equipment requirement, and had application prospects.

Key words: equine herpesvirus-1 (EHV-1); loop-mediated isothermal amplification assay (LAMP); rapid detection

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