A PCR-microarray method for the screening of genetically modified organisms

作者：Hamels Sandrine^*; Glouden Thomas; Gillard Karine; Mazzara Marco; Debode Frederic; Foti Nicoletta; Sneyers Myriam; Esteve Nuez Teresa; Pla Maria; Berben Gilbert; Moens William; Bertheau Yves; Audeon Colette; Van den Eede Guy; Remacle Jose

来源：European Food Research and Technology, 2009, 228(4): 531-541.

DOI：10.1007/s00217-008-0960-5

• GMO
• DNA microarray
• PCR
• Screening
• DualChip GMO
• Multiplex

A new method to screen and to identify genetically modified organisms (GMO) is presented in this paper. It is based on the detection of multiple genetic elements common to GMO by their amplification via PCR followed by direct hybridisation of the amplicons on microarray. The pattern of the elements is then compared to a database of the composition of EU-approved GMO and an identification of the GMO is then proposed. The limit of detection of the method was a parts per thousand currency sign0.1% GMO content (w/w) expressed as the amount of target DNA present in the template for single unprocessed material. The DNA targets were detected both in reference materials and in mixtures with the same detection limit. The specificity for the detection of the different elements was found to be very good with no cross-reaction even in samples with two GMO present at different concentrations. The paper presents examples of GMO identification and discusses the potential and limitation of such approaches and how they can facilitate the work of private and enforcement detection laboratories.

• 出版日期2009-2