PMID- 33761009 OWN - NLM STAT- MEDLINE DCOM- 20210607 LR - 20210607 IS - 1432-8798 (Electronic) IS - 0304-8608 (Linking) VI - 166 IP - 6 DP - 2021 Jun TI - Genetic characterization of a novel porcine reproductive and respiratory syndrome virus type I strain from southwest China. PG - 1769-1773 LID - 10.1007/s00705-021-04998-z [doi] AB - Porcine reproductive and respiratory syndrome (PRRS) is one of the most economically devastating viral diseases in the global pig industry. Recently, we isolated and plaque-purified porcine reproductive and respiratory syndrome virus (PRRSV) strain SC2020-1 from "aborted piglets" on a farm in Sichuan, China. To investigate the molecular biological characteristics of this strain, it was subjected to genome sequencing and analysis. The full-length genome sequence of strain SC2020-1 was 87.7% identical to that of the Lelystad strain (PRRSV type I protoype strain) and 82.2-84.8% identical to PRRSV type I isolates from China. NSP2, ORF3, and ORF4 were the most variable regions and contained discontinuous deletions or insertions when compared to other PRRSV type I strains. Phylogenetic analysis of the complete genome sequence showed that SC2020-1 clustered with PRRSV type I but outside of the three previously described branches (Lelystad virus-like, Amervac PRRS-like, and BJEU06-1-like). The Nsp2 gene was in the same branch with EUGDHD strains from China. This is the first report of PRRSV type I infection associated with abortion in sows in southwest China. Close attention should be paid to the prevention and control of this evolving virus. FAU - Zhao, Jun AU - Zhao J AUID- ORCID: 0000-0002-5804-6816 AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. FAU - Zhu, Ling AU - Zhu L AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. AD - Key , Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, China. FAU - Deng, Huidan AU - Deng H AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. FAU - Li, Fengqing AU - Li F AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. FAU - Xu, Lei AU - Xu L AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. FAU - Sun, Xiangang AU - Sun X AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. FAU - Yin, Wenqi AU - Yin W AD - Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China. FAU - Kuang, Shengyao AU - Kuang S AD - Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China. FAU - Li, Shuwei AU - Li S FAU - Zhou, Yuancheng AU - Zhou Y AD - Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China. abtczyc@163.com. AD - Livestock and Poultry Biological Products Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China. abtczyc@163.com. AD - Livestock and Poultry Biological Products Key Laboratory of Sichuan Province, Animtech Bioengineering Co. Ltd, Chengdu, China. abtczyc@163.com. FAU - Xu, Zhiwen AU - Xu Z AUID- ORCID: 0000-0002-9508-6593 AD - College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China. abtcxzw@126.com. AD - Key , Laboratory of Animal Diseases and Human Health of Sichuan Province, Chengdu, China. abtcxzw@126.com. LA - eng GR - 2018NZ0150/The Science and Technology Program of Sichuan Province/ GR - 2018YFD0500802/The National Key Research and Development Program/ GR - CARS-SVDIP/The Sichuan Veterinary Medicine and Drug Innovation Group of the China Agricultural Research System/ PT - Journal Article DEP - 20210324 PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 SB - IM MH - Animals MH - China/epidemiology MH - Disease Outbreaks/veterinary MH - Phylogeny MH - Porcine Reproductive and Respiratory Syndrome/epidemiology/*virology MH - Porcine respiratory and reproductive syndrome virus/*genetics MH - Swine EDAT- 2021/03/25 06:00 MHDA- 2021/06/08 06:00 CRDT- 2021/03/24 17:33 PHST- 2020/11/30 00:00 [received] PHST- 2020/12/26 00:00 [accepted] PHST- 2021/03/25 06:00 [pubmed] PHST- 2021/06/08 06:00 [medline] PHST- 2021/03/24 17:33 [entrez] AID - 10.1007/s00705-021-04998-z [pii] AID - 10.1007/s00705-021-04998-z [doi] PST - ppublish SO - Arch Virol. 2021 Jun;166(6):1769-1773. doi: 10.1007/s00705-021-04998-z. Epub 2021 Mar 24.