Molecular characterization of porcine circovirus 2 isolated from diseased pigs co-infected with porcine reproductive and respiratory syndrome virus

被引：14

作者：

Yi, Jianzhong ^{[1
]}

Liu, Chengqian ^{[1
]}

机构：

[1] Shanghai Acad Agr Sci, Inst Anim Husb Vet Sci, Shanghai 201106, Peoples R China

来源：

VIROLOGY JOURNAL | 2010年 / 7卷

关键词：

MULTISYSTEMIC WASTING SYNDROME; IDENTIFICATION; PROTEIN; STRAINS;

D O I：

10.1186/1743-422X-7-286

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

In this study, we isolated a porcine circovirus 2 (PCV2) strain from piglets co-infected with porcine reproductive and respiratory syndrome virus (PRRSV). The complete genome of this strain was sequenced, phylogenetic and polymorphic analyses were carried out. BLAST searches revealed the highest sequence identity (99.5% nt and 99.3% aa) to Guangxi strain EF675230. The phylogenetic tree showed that clustering of the isolates didn't strongly correlate to geographical distribution. Polymorphic analyses demonstrated that the amino acids at most of the polymorphic sites in Open Reading Frame 1(ORF1) and 2 (ORF2) belong to the same amino acid group according to chemical or structural properties, and revealed that highly polymorphic regions overlapped with the known immunoreactive epitopes of ORF2.

引用

页数：4

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