Emergence of novel canine parvovirus type 2 and its pathogenesis in raccoon dogs
| Autor: | Wang Jian-li, Diao Fei-fei, Teng Chuan-jie, Zhao Yong-feng, Shang Yuan-yuan, Yu Jia-yu, Xie Zhi-jing, Shijin Jiang, Zhu Qian, Peng Hui |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty China Parvovirus Canine animal diseases viruses Virulence Microbiology Host Specificity Enteritis Parvoviridae Infections 03 medical and health sciences Dogs Phylogenetics Molecular genetics parasitic diseases medicine Animals Dog Diseases Gene Phylogeny General Veterinary biology Phylogenetic tree Canine parvovirus virus diseases Genetic Variation General Medicine Raccoon Dogs Sequence Analysis DNA biology.organism_classification medicine.disease Virology 030104 developmental biology Mutation Capsid Proteins |
| Zdroj: | Veterinary microbiology. 216 |
| ISSN: | 1873-2542 |
| Popis: | Three parvoviruses were isolated from the raccoon dogs experiencing severe enteritis, named RDPV-DP1, RDPV-DP2 and RDPV-DP3, respectively. The VP2 genes of the 3 isolates showed 99.9% identity at the nucleotide level, and shared 99.1%-99.5% identity with the reference CPVs. The RDPVs resembled original CPV-2, but with four mutations. The RDPVs displayed S297A of VP2 protein as CPV-2a or CPV-2b prevalent throughout most of the world. Residue N375D was found in the 3 isolates, resembling CPV-2a/2b/2c. And the 3 isolates had a natural mutation of VP2 residue V562L, which is adjacent to residue 564 and 568 and might be involved in host range. Interestingly, VP2 S27T was firstly found in the isolates. Phylogenetic analysis of VP2 genes revealed that the RDPVs were clustered into one small evolutionary branch and shared the identical branch with 7 CPV-2 isolates from raccoon dogs and one CPV-2 isolate from fox, not with CPV vaccine viruses. Phylogenetic analysis of NS1 genes demonstrated that the RDPVs shared the identical branch with the reference CPV-2a/2b/2c. Experimental infection showed that RDPV infection caused a high morbidity in raccoon dogs. It implied that the RDPV was virulent to raccoon dogs and continued to evolve in China. |
| Databáze: | OpenAIRE |
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