›› 2011, Vol. 38 ›› Issue (9): 68-70.

• 生物技术 • 上一篇    下一篇

一株鸡新城疫强毒株的分离及生物学特性鉴定

马亚珍, 兰玲, 王涛   

  1. 新疆维吾尔自治区动物卫生监督所,乌鲁木齐 830063
  • 收稿日期:1900-01-01 修回日期:2011-03-16 出版日期:2011-09-20 发布日期:2011-09-20
  • 通讯作者: 兰玲

Isolation and Biological Characteristics Identification of a Virulent Newcastle Disease Virus

MA Ya-zhen, LAN Ling, WANG Tao   

  1. Animal Health Supervision Institute of the Xinjiang Uygur Autonomous Region, Urumchi 830063, China
  • Received:1900-01-01 Revised:2011-03-16 Online:2011-09-20 Published:2011-09-20

摘要: 本试验应用一步法RT-PCR和荧光RT-PCR方法分离到一株新城疫病毒,并对此毒株F基因进行了克隆、测序和分析,发现F蛋白裂解位点氨基酸序列为112Arg-Arg-Gln-Lys-Arg-Phe117,与新城疫病毒强毒株特征相符,从分子水平上证明了本试验所分离毒株为新城疫强毒株。结合GenBank中其他新城疫参考株F基因序列进行比较发现,本试验所分离毒株与目前流行的强毒株Taiwan/95、SKY/03、SGM/01的F基因裂解位点氨基酸序列完全一致,而与传统疫苗毒La Sota株的裂解位点则不同。

关键词: 新城疫; 反转录聚合酶链式反应; 融合蛋白; 强毒株

Abstract: This experimental application one-step RT-PCR and fluorescence RT-PCR methods separate to a Newcastle disease virus, and the strain F gene was cloned, sequenced and analyzed, and found that F protein amino acid sequence at the cleavage site was 112Arg-Arg-Gln-Lys-Arg-Phe117 which was the same as virulent Newcastle disease virus.The result proved the strain was virulent Newcastle disease virus from the molecular level. Combined with F gene sequence of other reference strains of Newcastle disease in GenBank revealed that the strain with the current virulent virus Taiwan/95, SKY/03, SGM/01 had the same amino acid sequence exactly of the F gene cleavage site, but the traditional vaccine strain La Sota was different.

Key words: Newcastle disease; reverse transcriptase-polymerase chain reaction; fusion protein; virulent virus

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