›› 2010, Vol. 37 ›› Issue (8): 52-54.

• 生物技术 • 上一篇    下一篇

猪繁殖与呼吸综合征病毒辽宁分离株ORF5基因的克隆与序列分析

沈国顺,薛娜,王宇   

  1. (沈阳农业大学畜牧兽医学院,沈阳 110161)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-08-20 发布日期:2010-08-20

Cloning and Sequences Analysis on ORF5 Gene of Porcine Reproductive and Respiratory Syndrome Virus Stain Liaoning

SHEN Guo-shun, XUE Na, WANG Yu   

  1. (College of Animal Sciences and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110161, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20

摘要: 本试验以辽宁地区某猪场猪繁殖与呼吸综合征(porcine reproductive and respiratory syndrome,PRRS)发病猪病料为材料,采用RT-PCR方法特异性扩增编码猪繁殖与呼吸综合征病毒(porcine reproductive and respiratory syndrome virus,PRRSV) GP5蛋白的ORF5基因全长cDNA,结果该分离株ORF5基因编码区长603 bp,可编码200个氨基酸。与美洲型代表株VR2332、欧洲型代表株LV进行同源性比较,氨基酸同源性分别为89.5%和55.7%。推测该辽宁分离株属于美洲型。

关键词: 猪繁殖与呼吸综合征病毒; ORF5基因; 克隆; 序列分析

Abstract: The ORF5 cDNA encoding GP5 protein of porcine reproductive and respiratory syndrome virus (PRRSV) stain Liaoning was amplified by RT-PCR. The cDNA fragment was further cloned and the complete sequences were determined. The results showed the cDNA of ORF5 was 603 bp, encoding 200 amino acids. Compared with the ORF5 gene of typical North American stain (VR2332 strain) and European strain (LV strain), it was found that there was 89.5% and 55.7% homology at amino acids level respectively. It indicated that the PRRSV strain Liaoning belongs to North American type.

Key words: porcine reproductive and respiratory syndrome virus (PRRSV); ORF5 gene; cloning; sequences analysis

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