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KMID : 1007520100190041029
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Food Science and Biotechnology
2010 Volume.19 No. 4 p.1029 ~ p.1033
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Detection System of Stacked Genetically Modified Maize Using Multiplex PCR
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Kim Su-Youn
Kim Jae-Hwan
Lee Hyung-jae
Kim Hae-Yeong
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Abstract
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A multiplex polymerase chain reaction (PCR) method was developed to identify and distinguish 3 kinds of stacked genetically modified (GM) maize (MON810× MON863, NK603×MON863, and NK603×MON810× MON863). Four primer pairs, SSIIb JHF/JHR, C3b 5'/ TAP1-3', HS01/cry-CR01, and HS01/CTP164-3' yielded 101, 129, 194, and 314 bp amplicons, respectively, Using the genomic DNA of the 3 stacked GM maize as templates, 3 or 4 corresponding PCR amplicons were amplified with similar band intensities by the multiplex PCR. The limit of detection (LOD) was approximately 0.5% for 3 kinds of stacked GM maize, using the multiplex PCR. The detection system using multiplex PCR developed in this study may be applicable to monitoring, identifying, and distinguishing not only the stacked GM maizes but also other stacked genetically modified organisms (GMOs).
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KEYWORD
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genetically modified (GM) maize, stacked GM event, detection, multiplex polymerase chain reaction, limit of detection
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