PMID- 27619842 OWN - NLM STAT- MEDLINE DCOM- 20171222 LR - 20180209 IS - 1872-7492 (Electronic) IS - 0168-1702 (Linking) VI - 225 DP - 2016 Oct 2 TI - Genomic characterization and pathogenicity of a strain of type 1 porcine reproductive and respiratory syndrome virus. PG - 40-49 LID - S0168-1702(16)30103-4 [pii] LID - 10.1016/j.virusres.2016.09.006 [doi] AB - The emergence of type 1 porcine reproductive and respiratory syndrome virus (PRRSV) has been noticed recently in China. In the present study, the complete genomic characterization of a strain of type 1 PRRSV (designated GZ11-G1) was described and its pathogenicity for piglets was analyzed. The results showed that the complete genome of GZ11-G1 with a size of 15,094 nt, excluding the poly (A) tails, shared 80.2-96.3% identity with the representative strains of type 1 PRRSV, and in particular, it had highest homology (96.3%) with Amervac PRRS, a live vaccine virus of type 1 PRRSV and SHE, a rescued virus from an infectious clone of Amervac PRRS virus. Compared with the vaccine virus, the nonstructural and structural proteins of GZ11-G1 displayed extensive amino acid variations except for its ORF5a. GZ11-G1 was clustered with the strains of type 1 PRRSV including Cresa3267, Cresa3249, Cresa3256, Olot/91, 9625/2012, ESP-1991-Olot91 and Amervac PRRS vaccine virus by further phylogenetic analysis. Moreover, GZ11-G1 was shown to cause fever, higher viremia and lung and lymph node lesions in piglets. Our findings indicate that GZ11-G1 is genetically related to type 1 PRRSV strains within the cluster formed by Cresa3267, Cresa3249, Cresa3256, Olot/91, 9625/2012, ESP-1991-Olot91 and Amervac PRRS vaccine virus, and it is a pathogenic for piglets. This study aids in understanding the genetic variation and evolution of type 1 PRRSV. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Wang, Xingchen AU - Wang X AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. FAU - Yang, Xiaorong AU - Yang X AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. FAU - Zhou, Rong AU - Zhou R AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. FAU - Zhou, Lei AU - Zhou L AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. FAU - Ge, Xinna AU - Ge X AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. FAU - Guo, Xin AU - Guo X AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. Electronic address: guoxin@cau.edu.cn. FAU - Yang, Hanchun AU - Yang H AD - Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, People's Republic of China. Electronic address: yanghanchun1@cau.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160913 PL - Netherlands TA - Virus Res JT - Virus research JID - 8410979 RN - 0 (RNA, Viral) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Genetic Variation MH - *Genome, Viral MH - *Genomics MH - Open Reading Frames MH - Porcine Reproductive and Respiratory Syndrome/diagnosis/*virology MH - Porcine respiratory and reproductive syndrome virus/*classification/*genetics/pathogenicity MH - RNA, Viral MH - Swine MH - Viral Load OTO - NOTNLM OT - Genome OT - Pathogenicity OT - Porcine reproductive and respiratory syndrome virus (PRRSV) OT - Type 1 EDAT- 2016/09/14 06:00 MHDA- 2017/12/23 06:00 CRDT- 2016/09/14 06:00 PHST- 2016/02/08 00:00 [received] PHST- 2016/08/24 00:00 [revised] PHST- 2016/09/08 00:00 [accepted] PHST- 2016/09/14 06:00 [pubmed] PHST- 2017/12/23 06:00 [medline] PHST- 2016/09/14 06:00 [entrez] AID - S0168-1702(16)30103-4 [pii] AID - 10.1016/j.virusres.2016.09.006 [doi] PST - ppublish SO - Virus Res. 2016 Oct 2;225:40-49. doi: 10.1016/j.virusres.2016.09.006. Epub 2016 Sep 13.