食品科学 ›› 2012, Vol. 33 ›› Issue (22): 242-245.

• 分析检测 • 上一篇    下一篇

冬虫夏草实时荧光PCR检测方法的建立

马 骏,谢 力,陈永红,胡学难,高东微   

  1. 广东出入境检验检疫局检验检疫技术中心
  • 收稿日期:2011-08-31 修回日期:2012-10-09 出版日期:2012-11-25 发布日期:2012-11-20
  • 通讯作者: 马骏 E-mail:maj@iqtc.cn
  • 基金资助:

    冬虫夏草分子鉴别方法

A Real-Time PCR Method for Detection of Cordyceps sinensis (Berk.) Sacc.

  • Received:2011-08-31 Revised:2012-10-09 Online:2012-11-25 Published:2012-11-20
  • Contact: Jun Ma E-mail:maj@iqtc.cn

摘要: 建立冬虫夏草高效、灵敏的分子检测方法。以冬虫夏草Cordyceps sinensis (Berk.) Saccardo核糖体(rDNA)内转录间隔区(ITS)为分子标记片段,通过对不同虫草同源序列的比对分析,设计对冬虫夏草具有特异性反应的实时荧光PCR引物和探针。该引物检测的目标DNA长度为80bp,对冬虫夏草DNA模版的检测含量可低至0.0001ng/μL。

关键词: 冬虫夏草, 实时荧光PCR, 鉴别

Abstract: An efficient and sensitive method was established to detect Cordyceps sinensis (Berk.) Saccardo using real-time PCR. The internal transcribed spacer (ITS) region of ribosomal DNA (rDNA) in Cordyceps sinensis (Berk.) Saccardo. was used as a target molecular marker and sequence homology analysis was carried out on various Cordyceps species. A set of specific primer and probe for real-time PCR was designed which allowed the amplification of 80-bp DNA fragments. The detectable DNA template concentration of the real-time PCR method for Cordyceps sinensis (Berk.) Saccardo was as low as 0.0001 ng/μL.

Key words: Cordyceps sinensis, real-time PCR, identification

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