PMID- 19349127 OWN - NLM STAT- MEDLINE DCOM- 20091026 LR - 20130131 IS - 1873-2542 (Electronic) IS - 0378-1135 (Linking) VI - 138 IP - 1-2 DP - 2009 Jul 2 TI - Genetic variation analysis of porcine reproductive and respiratory syndrome virus isolated in China from 2002 to 2007 based on ORF5. PG - 150-5 LID - 10.1016/j.vetmic.2009.03.001 [doi] AB - The complete open reading frame 5 (ORF5) sequences of 34 field porcine reproductive and respiratory syndrome virus (PRRSV) isolates from China in 2002-2007 were detected and compared with the different variable Chinese isolates S1, CH-1a, HB-1, HB-2 and JXA1. The results showed that all isolates were of type 2 PRRSV and could be assigned to two clusters. The isolates in cluster sg1 was high similar with the highly pathogenic PRRSV strain JXA1, while sg2 clustered with type 2 PRRSV isolate VR2332. It was interesting that the isolate SH02 which was isolated from Shanghai in 2002 has 98.8% identity with JXA1 emerged in 2006. And the ZJJ07 isolate was found to be a natural recombinant between a Chinese highly pathogenic SY0608 isolate and a VR-2332 derivative NH04 isolate. Analysis of the potential glycosylation sites indicated that they were frequently mutated and formed five putative N-linked glycosylation (NGS) sites patterns based on N30, 33-35, 44 and 51 in those isolates. It indicated that the highly variable PRRSV strain with different NGS patterns spread widely in China. The great genetic diversity could be taken into consideration for the control and prevention of this disease. FAU - Li, Yufeng AU - Li Y AD - Key Laboratory of Animal Disease Diagnostic and Immunology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, China. FAU - Wang, Xinglong AU - Wang X FAU - Jiang, Ping AU - Jiang P FAU - Wang, Xiaofeng AU - Wang X FAU - Chen, Wen AU - Chen W FAU - Wang, Xianwei AU - Wang X FAU - Wang, Kewei AU - Wang K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090313 PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - 0 (DNA Primers) RN - 0 (RNA, Viral) RN - 0 (Viral Envelope Proteins) RN - 0 (Viral Proteins) RN - 0 (glycoprotein 5, PRRSV) SB - IM MH - Amino Acid Sequence MH - China MH - Cloning, Molecular MH - DNA Primers MH - *Genetic Variation MH - Geography MH - Glycosylation MH - Molecular Sequence Data MH - Phylogeny MH - Polymerase Chain Reaction/methods MH - Porcine respiratory and reproductive syndrome virus/classification/*genetics/isolation & purification MH - RNA, Viral/genetics/isolation & purification MH - Sequence Alignment MH - Sequence Homology, Amino Acid MH - Sequence Homology, Nucleic Acid MH - Viral Envelope Proteins/genetics MH - Viral Proteins/*genetics EDAT- 2009/04/08 09:00 MHDA- 2009/10/27 06:00 CRDT- 2009/04/08 09:00 PHST- 2008/06/24 00:00 [received] PHST- 2009/02/10 00:00 [revised] PHST- 2009/03/02 00:00 [accepted] PHST- 2009/04/08 09:00 [entrez] PHST- 2009/04/08 09:00 [pubmed] PHST- 2009/10/27 06:00 [medline] AID - S0378-1135(09)00105-9 [pii] AID - 10.1016/j.vetmic.2009.03.001 [doi] PST - ppublish SO - Vet Microbiol. 2009 Jul 2;138(1-2):150-5. doi: 10.1016/j.vetmic.2009.03.001. Epub 2009 Mar 13.