ORIGINAL PAPER
Multiplex PCR assays for qualitative detection and identification of the GT73, Ms8, Rf3 and T45 varieties of genetically modified oilseed rape
1
National Veterinary Research Institute in Puławy, Department of Hygiene of Animal Feedingstuffs, al. Partyzantów 57, 24-100 Puławy, Poland
Publication date: 2017-06-12
Corresponding author
M. Mazur
National Veterinary Research Institute in Puławy, Department of Hygiene of Animal Feedingstuffs, al. Partyzantów 57, 24-100 Puławy, Poland
National Veterinary Research Institute in Puławy, Department of Hygiene of Animal Feedingstuffs, al. Partyzantów 57, 24-100 Puławy, Poland
J. Anim. Feed Sci. 2017;26(2):148-156
KEYWORDS
ABSTRACT
Polymerase chain reaction (PCR) has become the main method
for detection and identification of genetically modified organisms (GMOs). Multiplex
PCR is a variation of this technique allowing simultaneous amplification of
several targets in the same reactions. In this study, it was developed, optimized
and performed in-house validation of the multiplex PCR method for detection
and identification of genetically modified rape lines (GT73, Ms8, Rf3 and T45) in
two types of assays: gene- and event-specific. The optimized reactions exhibited
high specificity, sensitivity, selectivity and accuracy. The limit of detection (LOD)
for the gene-specific reaction was 0.01% for each of the tested lines of rape. For
the event-specific reaction, LOD was at the same level for most of the GM rape
lines except for T45 (LOD = 0.025%). The optimized and validated assays were
employed from 2012 to 2015 in our laboratory to analyse 428 samples of animal
feedstuffs containing oilseed rape. GM rape was not detected in the analysed
feedstuffs until 2013 (only some traces of GM soybean were found). Since 2014,
the GM rape presence has been confirmed in event-specific reactions in more
than one third of analysed samples.
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CITATIONS (1):
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| ISSN: | 1230-1388 |
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