Equal performance of TaqMan, MGB, molecular beacon, and SYBR green-based detection assays in detection and quantification of roundup ready soybean

J Agric Food Chem. 2006 Dec 27;54(26):9658-63. doi: 10.1021/jf061987c.

Abstract

We have tested and compared the performance of 12 different assays representing four different real-time polymerase chain reaction (PCR) chemistries in the context of genetically modified organism detection. Several different molecular beacon, SYBR Green, TaqMan, and MGB assays were designed for the event specific detection and quantification of the 3' integration junction of GTS 40-3-2 (Roundup Ready) soybean. Sensitivity as well as robustness in the presence of background DNA were tested. None of the PCR-based approaches appeared to be significantly better than any of the other, but the molecular beacon assays had the lowest efficiency and also seemed more sensitive to changes in experimental setup.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • DNA, Plant / analysis*
  • Fluorescent Dyes
  • Glycine max / genetics*
  • Plants, Genetically Modified / classification
  • Plants, Genetically Modified / genetics*
  • Polymerase Chain Reaction / methods*
  • Sensitivity and Specificity

Substances

  • DNA, Plant
  • Fluorescent Dyes