›› 2018, Vol. 45 ›› Issue (1): 65-70.doi: 10.16431/j.cnki.1671-7236.2018.01.008

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Sequence Analysis of ORF30 Gene of Equid Herpesvirus Type 1 in Ili of Xinjiang

FAN Bin1, WANG Yan1, Zhumahan·A2, RAN Duoliang1, LIU Jianhua1, Jarhen1   

  1. 1. Laboratory of Animal Infectious Disease, College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Academy of Animal Husbandry Economics and Information Research Institute, Urumqi 830011, China
  • Received:2017-08-03 Online:2018-01-20 Published:2018-01-20

Abstract:

To study the genotypes of EHV-1-XJ2015 strain isolated from Ili area of Xinjiang, this study investigated the potential risk factors for EHV-1-XJ2015.In this experiment, specific primers was designed and using PCR technique to amplify corresponding region of EHV-1-XJ2015 isolate ORF30 gene, connected to vector pMD19-T,and the recombinant plasmid pMD19-T-ORF30 was successfully constructed. Sequencing results showed that EHV-1-XJ2015 strain ORF30 gene 2 254 bp site was A, and encoding asparagine (N).It was proved that EHV-1-XJ2015 was a non-neurotoxic strain, virulent strains tend to behave as a miscarriage. The phylogenetic analysis showed that the EHV-1-XJ2015 strain was the same branch as the 90c16, 00c19, HH1, NY03 isolated from Japan, amino acid homology was the highest and reached 100%. The results provided a theoretical basis for the study of EHV-1 molecular epidemiology and the assessment of existing diagnostic methods and prevention and control measures in Xinjiang, and ultimately achieved the purpose of prevention and control of the disease.

Key words: EHV-1; ORF30; pathogenicity genotype; sequence alignment

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