›› 2010, Vol. 37 ›› Issue (8): 41-44.

• 生物技术 • 上一篇    下一篇

美洲狮和亚洲黑熊蛔虫ITS序列扩增及序列分析

贺现辉1, 陈武2,何乐天1,3,王培园1,袁子国1,林瑞庆1   

  1. (1.华南农业大学兽医学院, 广州 510642; 2.广州动物园, 广州 510070; 3.广州创来生物技术有限公司, 广州 510640)
  • 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
  • 通讯作者: 林瑞庆

PCR Amplification and Sequence Analysis of Internal Transcribed Spacers(ITS) of Ascarids from Puma concolor and Ursus thibetanus

HE Xian-hui1,CHEN WU2, HE Le-tian1,3,WANG Pei-yuan1,YUAN Zi-guo1,LIN Rui-qing1   

  1. (1.College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; 2.Guangzhou Zoo, Guangzhou 510070, China; 3.Guangzhou Chuanglai Biotechnology Limited Company, Guangzhou 510640, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20
  • Contact: LIN Rui-qing

摘要: 以采自广州动物园美洲狮和亚洲黑熊体内的蛔虫样品为研究对象,提取样品的总DNA,以保守引物对核糖体DNA内转录间隔区(ITS)序列进行PCR扩增、测序及网上比对。结果表明,美洲狮体内样品获得与 GenBankTM公布的狮弓首蛔虫相似性很高的ITS-1、ITS-2和5.8S序列,亚洲黑熊体内样品获得与GenBankTM公布的转移拜林蛔虫相似性很高的ITS-2序列,并首次获得样品的ITS-1与5.8S序列。序列分析结果表明,美洲狮体内蛔虫样品为狮弓首蛔虫,亚洲黑熊体内蛔虫样品为转移拜林蛔虫。

关键词: 美洲狮; 亚洲黑熊; 蛔虫; 核糖体DNA内转录间隔区; 序列分析

Abstract: The DNA internal transcribed spacer (ITS) and 5.8S rDNA of ascaris from the Puma concolor and the Ursus thibetanus in Guangzhou zoo were amplified by PCR respectively using a pair of conserved primers and the amplicons were cloned into pGEM-T Easy vector. The positive clones identified by PCR amplification were sequenced and analyzed, and compared with relevant sequence in GenBankTM. The results revealed that the ITS and 5.8S sequence of the ascaris from Puma concolor and the ITS-2 sequence from Ursus thibetanus were significantly similar with that of Toxascaris leonina and Baylisascaris transfuga available in GenBankTM respectively. We concluded that the ascaris from Puma concolor represent the T. leonina, and that from Ursus thibetanus represent the B. Transfuga.

Key words: Puma concolor; Ursus thibetanus; ascaris; ribosomal DNA internal transcribed spacers; sequence analysis

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