Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (1): 262-267.doi: 10.11843/j.issn.0366-6964.2021.028

• RESEARCH NOTES • Previous Articles     Next Articles

Sequence Analysis of the Complete VP2 and NS1 Genes of 14 Canine Parvovirus Isolates in Beijing

LI Shaohan1,2, YOU Xinyue1,2, FAN Junwen3, XU Yi4, HAO Yunfeng1,2, CUI Shangjin1,2, QIN Tong1,2*   

  1. 1. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Scientific Observing and Experiment Station of Veterinary Drugs and Diagnostic Technology of Ministry of Agriculture, Beijing 100193, China;
    3. Beijing Animal Disease Prevention and Control Center, Beijing 102629, China;
    4. China Animal Diseases Control Center, Beijing 100125, China
  • Received:2020-06-22 Online:2021-01-23 Published:2021-01-19

Abstract: Fourteen strains of canine parvovirus (CPV) were successfully isolated and identified from feces swabs of dogs which were suspected to be infected CPV in Beijing, and their complete NS1 and VP2 genes were sequenced and analyzed. Among the 14 strains identified, the results showed that 7 strains were New CPV-2a and 7 strains were of CPV-2c. Besides, some new amino acid mutation sites were identified (amino acids 19, 33, 293, 588, 624 and 656 of the NS1 and amino acids 13 and 574 of the VP2). Phylogenetic analysis based on the VP2 and NS1 genes indicated that most of the New CPV-2a and CPV-2c strains were closely related to the isolated strains in Nanning, Guangxi, and Changchun, Jilin, indicating that the isolated strains had the same origin as the isolated strains in Guangxi or Jilin. This study provides a useful reference for better epidemiological investigation of canine parvovirus, and also builds a foundation for the in-depth study of the molecular mechanism of canine parvovirus variation and transmission.

Key words: canine parvovirus, isolation and identification, VP2 gene, NS1 gene, evolutionary analysis

CLC Number: