›› 2010, Vol. 37 ›› Issue (11): 66-68.

• 生物技术 • 上一篇    下一篇

伊维菌素敏感牧羊犬MDR1基因的克隆与序列分析

于艳英1,林远清2,吴玄光1,孙永学1   

  1. (1.华南农业大学兽医学院,广州 510642; 2.广东省公安厅,广州 510050)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-20 发布日期:2010-11-20
  • 通讯作者: 孙永学

Cloning and Sequence Analysis of MDR1 Gene in Ivermectin-sensitive Collies

YU Yan-ying1, LIN Yuan-qing2, WU Xuan-guang1, SUN Yong-xue1   

  1. (1.College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China;2.Guangdong Provincial Police Department, Guangzhou 510050, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-11-20 Published:2010-11-20
  • Contact: SUN Yong-xue

摘要: 本试验旨在探讨利用RT-PCR方法检测牧羊犬MDR1基因突变的可行性及临床意义。从对伊维菌素敏感的苏格兰牧羊犬和不敏感的德国牧羊犬血液里提取RNA,通过PCR获得了目的基因MDR1,连接并转化,增菌培养后,提取阳性质粒进行序列测定。苏格兰牧羊犬的基因缺少4个碱基,德国牧羊犬的基因则正常。RT-PCR方法鉴定了苏格兰牧羊犬MDR1基因突变,目前是一种简单、方便、快速、准确的基因诊断方法,有助于临床合理地进行药物治疗。

关键词: 伊维菌素; 牧羊犬; MDR1; 序列

Abstract: The aim of this study was to investigate the feasibility and clinical significance of applying RT-PCR to the detection of the MDR1 mutation and establish a simple, economic, efficient method of genetic diagnosis. Genomic RNA was extracted from the blood of and ivermectin-nonsensitive collies. The MDR1 gene was amplified by RT-PCR, and then cloned and sequenced. The MDR1 mutation of Scotland Collies concerns an exonic 4 bp detection in the palindromic sequence GATAG and creates a nonsense frame shift at amino acid position 75 followed by a premature stop codon. RT-PCR is a simple, economic, quick, precise method of genetic diagnosis and was able to find MDR1 mutation in Scotland Collies in this study. It is helpful in clinical carries on the pharmacological treatment reasonably.

Key words: ivermectin; Collies; MDR1; sequence

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