NSP2 genetic evolution analysis of porcine reproductive and respiratory syndrome virus in swine herds in Liaoning Province from 2011 to 2012 years
Yu Xuewu
Gu Guibo
Chen Yao
Shen Guannan
Wu Yunpu
Guan Miao
Yan Haibin
Wang Hongyan
Lan Desong
Li Rong
Abstract：In this study, molecular biology techniques were used to amplify and se-quencing six strains PRRSV NSP2 genome sequences in swine herds in Liaoning Prov-ince from 2011 to 2012 years. It was found that full-length of six strains PRRSV NSP2 genome sequences were all 2 850 bp. continuous base deletion occurred at 1 441bp~1 143bp and 1 593bp~1 689bp of the six strains PRRSV NSP2 genome;and they were all variant strains. All of he six strains PRRSV NSP2 genome had typical HP-PRRSV molecular characteristics.The analysis of homology and phylogenetic showed that different strains of HP-PRRSV were prevalent in in swine herds in Liaon-ing Province at the same time. The strains of HP-PRRSV may originate from the same ancestor PRRSV strain in swine herds in Liaoning Province.
Keywords：LiaoningAorcine reproductive and respiratory syndromeNSP2Genetic evolution
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 29-33 )