Title: Efficient retrieval of recombinant sequences of GM plants by Cauliflower Mosaic Virus 35S promoter-based bidirectional LT-RADE
Authors: SPALINSKAS RapolasMILCAMPS AnneVAN DEN BULCKE MARC
Citation: EUROPEAN FOOD RESEARCH AND TECHNOLOGY vol. 237 no. 6 p. 1025-1031
Publisher: SPRINGER
Publication Year: 2013
JRC N°: JRC75179
ISSN: 1438-2377
URI: http://link.springer.com/article/10.1007%2Fs00217-013-2078-7#
http://publications.jrc.ec.europa.eu/repository/handle/JRC75179
DOI: 10.1007/s00217-013-2078-7
Type: Articles in periodicals and books
Abstract: Identification of genetically modified (GM) plants remains a difficult task, especially when few information on the GM content in a sample is available. The P-35S is a commonly applied genetic element in GM plants and represents as such a suitable starting point for the tracing of GM plants. Here, the application of a CaMV P-35S LT-RADE genome walking method on five different genetically modified (GM) crops is documented: MON810 maize, LLRICE62 rice, T45 rapeseed, A2704-12 soybean and LLCOTTON25 cotton. Two sets of oligonucleotide primers are presented as a potential forward or reverse genome walking strategy with genomic DNA as template. The method’s robustness and suitability for assessing the recombinant nature of P-35S positive signals is presented in detail. This study demonstrates for the first time the general applicability of LT-RADE in molecular characterization of GMOs retrieving several previously unknown transgenic insert nucleotide sequences. Current limitations and future developments are discussed.
JRC Directorate:Institute for Health and Consumer Protection Historical Collection

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