PMID- 29978122 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220318 IS - 2450-7393 (Print) IS - 2450-8608 (Electronic) IS - 2450-7393 (Linking) VI - 62 IP - 1 DP - 2018 Mar TI - Complete Genome Sequences of Three Sub-genotype 2.1b Isolates of Classical Swine Fever Virus in China. PG - 7-15 LID - 10.2478/jvetres-2018-0002 [doi] AB - INTRODUCTION: Classical swine fever (CSF) has caused severe economic losses in pig production in many countries. Recent CSF outbreaks in China are mainly associated with sub-genotype 2.1 of CSF virus (CSFV). Although there is abundant information regarding 2.1 isolates, few data are available on whole-genome analysis. MATERIAL AND METHODS: The biological and genome characteristics of three recently emerged Chinese CSFV isolates, i.e. SD2014-1, SD2014-2, and SD2014-3, were fully analysed. RESULTS: Sequence analysis showed that the isolates shared 83.4%-95.0% nucleotide identity with eight other CSFV isolates. In addition, the 5' untranslated region (5'UTR) and the non-structural (NS) proteins NS3, NS4A, and NS4B were more conserved than other regions of the genome. Phylogenetic analysis based on the complete genome sequences or full-length structural protein E2 gene sequences revealed that the three isolates belonged to sub-genotype 2.1b. In addition, several unique molecular characteristics of the 5'UTR, 3'UTR, and E2 were identified. CONCLUSION: The genomic variations of the three isolates will support further analysis of virulence determinants and the evolutionary trend of CSFV. FAU - Liu, Chunxiao AU - Liu C AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150069, China. FAU - Li, Mingliang AU - Li M AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Yin, Xingwang AU - Yin X AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Zhang, Hongliang AU - Zhang H AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150069, China. FAU - Xiang, Lirun AU - Xiang L AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150069, China. FAU - Zhai, Hongyue AU - Zhai H AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Wang, Congcong AU - Wang C AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Kan, Yunchao AU - Kan Y AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Yao, Lunguang AU - Yao L AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. FAU - Tian, Zhijun AU - Tian Z AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150069, China. FAU - Leng, Chaoliang AU - Leng C AD - Henan Key Laboratory of Insect Biology in Funiu Mountain, Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, China. LA - eng PT - Journal Article DEP - 20180330 PL - Poland TA - J Vet Res JT - Journal of veterinary research JID - 101696630 PMC - PMC5957456 OTO - NOTNLM OT - classical swine fever virus OT - complete genomic analysis OT - genomic variations OT - sub-genotype 2.1b COIS- Conflict of Interests Statement: The authors declare that there is no conflict of interests regarding the publication of this article. EDAT- 2018/07/07 06:00 MHDA- 2018/07/07 06:01 PMCR- 2018/03/30 CRDT- 2018/07/07 06:00 PHST- 2017/10/22 00:00 [received] PHST- 2018/03/15 00:00 [accepted] PHST- 2018/07/07 06:00 [entrez] PHST- 2018/07/07 06:00 [pubmed] PHST- 2018/07/07 06:01 [medline] PHST- 2018/03/30 00:00 [pmc-release] AID - jvetres-2018-0002 [pii] AID - 10.2478/jvetres-2018-0002 [doi] PST - epublish SO - J Vet Res. 2018 Mar 30;62(1):7-15. doi: 10.2478/jvetres-2018-0002. eCollection 2018 Mar.