ACTA AGRICULTURAE BOREALI-SINICA ›› 2016, Vol. 31 ›› Issue (2): 231-238. doi: 10.7668/hbnxb.2016.02.037

Special Issue: Biotechnology

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Sequence Analysis of the Hemagglutinin Gene of Canine distemper virus from Vaccinated Dogs,Minks and Foxes

HUANG Juan, SUI Xiaomei, WANG Yinan, SHAN Hu   

  1. College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Key Laboratory of Preventive Veterinary Medicine in Universities of Shandong, Qingdao 266109, China
  • Received:2016-02-17 Published:2016-04-28

Abstract: In order to understand whether new genotype emerged, we detected Canine distemper virus(CDV) in immunized dogs, breeding foxes and minks in different regions by amplification of nucleocapsid(N) and hemagglutinin(H) gene.13 strains from CDV-positive cases(8 minks, 2 foxes and 3 dogs) were sequenced.The results showed that the 13 Chinese strains shared 99.1%-100.0% nucleotide identity.Compared with those of other Chinese CDV strains isolated before 2012, four consistent amino acid changes, P200S, M263I, I542N and Y549H, were observed in the H coding sequence of CDV isolated from vaccinated animals, which contribute to an additional N-glycosylation site and antigenic epitope.All of the strains obtained from 13 samples were characterized as genotype Asia-1 according to the sequence analysis of the complete H gene, which was the sole genotype in minks in China.These findings provide a comprehensive understanding of current immune failure and the molecular epidemiology of CDV in China.

Key words: Canine distemper virus, Hemagglutinin gene(H), Vaccination failure

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Cite this article

HUANG Juan, SUI Xiaomei, WANG Yinan, SHAN Hu. Sequence Analysis of the Hemagglutinin Gene of Canine distemper virus from Vaccinated Dogs,Minks and Foxes[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(2): 231-238. doi: 10.7668/hbnxb.2016.02.037.

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