遗传进化分析表明该毒株属于PCV2d亚型。与国内外82株参考毒株的核苷酸相似性为91.4%~99.6%，与越南毒株Han8（GenBank登录号：JQ181600）的亲缘关系最近。在ORF1编码的Rep蛋白处发现多个特异性突变位点F70Y、F77L、W202R、N256S；ORF2编码的Cap蛋白相对保守。Protean预测Cap蛋白的氨基酸第5~18、24~25、39~41、48...
Type 2 (PCV2) strains on a swine farm in Guangdong Province, and enrich molecular epidemiological data of PCV2, in order to provide reference for the selection and development of local PCV2 vaccine candidate strains.【Method】Samples suspected of PCV2 infection were...