期刊
VIRUSES-BASEL
卷 12, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/v12060680
关键词
APPV; wild boar; ML tree; Clade; pestivirus
类别
资金
- Animal and Plant Quarantine Agency, Republic of Korea [B-1543083-2019-21-02]
Atypical porcine pestivirus (APPV), currently classified aspestivirus K, causes congenital tremor (CT) type A-II in piglets. Eighteen APPV strains were identified from 2297 South Korean wild boars captured in 2019. Phylogenetic analysis of the structural protein E2 and nonstructural proteins NS3 and Npro classified the APPV viruses, including reference strains, into Clades I, II and III. Clade I was divided into four subclades; however, the strains belonging to the four subclades differed slightly, depending on the tree analysis, the NS3, E2, and Npro genes. The maximum-likelihood method was assigned to South Korean wild boar APPV strains to various subclades within the three trees: subclades I.1 and I.2 in the E2 tree, subclade I.1 in the Npro tree, and subclades I.1 and I.4 in the NS3 ML tree. In conclusion, APPV among South Korean wild boars belonging to Clade I may be circulating at a higher level than among the South Korean domestic pig populations.
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