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Identification of unknown genetically modified material admixed in conventional cotton seed and development of an event-specific detection method Electron. J. Biotechnol.
Akritidis,Paschalis; Pasentsis,Konstantinos; Tsaftaris,Athanasios S; Mylona,Photini V; Polidoros,Alexios N.
Entering the second decade of commercialization of biotech crops, the global area cultivated with transgenic plants constantly expands and national legislations in many countries, particularly in the European Union, require identification and labeling of genetically modified material in food and feed. We describe here a procedure for characterizing transgenic material of unknown origin present in conventional seed lots using a genome walking strategy for isolation and characterization of the junction between the inserted transgene construct and the host plant genomic DNA. The procedure was applied to transgenic cotton detected as adventitious or technically unavoidable presence in a conventional commercial cultivar. The structure of the isolated region...
Tipo: Journal article Palavras-chave: Event specific detection; Genetically modified cotton; Genome walking; GMO detection; Mon1445.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200010
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Assessment of DNA extraction methods from various maize (Zea mays L.) tissues for environmental GMO monitoring in Mexico: Part I: detection by end-point PCR Agrociencia
SanJuan-Badillo,Andrea; Galvez,Amanda; Plasencia,Javier; Quirasco,Maricarmen.
In Mexico, regulations for growing genetically modified (GM) maize (Zea mays L.) plants have been enforced in order to prevent gene flow to native landraces and wild relatives. Field surveys are necessary and Mexican government agencies have the mandate to perform them. Because of their specificity, PCR-based methods are suitable for field monitoring of GM organisms but it is necessary to assess their performance, since they are greatly influenced by the DNA preparation quality inherent to the extraction method. In this study, genomic DNA was extracted from various maize tissues (e.g. pollen, leaves, spikelets and grains) using five different commercial purification protocols. DNA quality was analyzed spectrophotometrically, by gel electrophoresis, and as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: PCR inhibition; GM maize; Variability of DNA yield; DNA quantification; GMO detection.
Ano: 2014 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000100002
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