Development of Multiplex PCR Coupled DNA Chip Technology for Assessment of Endogenous and Exogenous Allergens in GM Soybean

Abstract

Allergenicity assessment of transgenic plants and foods is important for food safety, labeling regulations, and health protection. The aim of this study was to develop an effective multi-allergen diagnostic approach for transgenic soybean assessment. For this purpose, multiplex polymerase chain reaction (PCR) coupled with DNA chip technology was employed. The study was focused on the herbicide-resistant Roundup Ready soya (RRS) using a set of certified reference materials consisting of 0, 0.1%, 0.5%, and 10% RRS. Technically, the procedure included design of PCR primers and probes; genomic DNA extraction; development of uniplex and multiplex PCR systems; DNA analysis by agarose gel electrophoresis; microarray development, hybridization, and scanning. The use of the asymmetric multiplex PCR method is shown to be very efficient for DNA hybridization with biochip probes. We demonstrate that newly developed fourplex PCR methods coupled with DNA-biochips enable simultaneous identification of three major endogenous allergens, namely, Gly m Bd 28K, Gly m Bd 30K, and lectin, as well as exogenous 5-enolppyruvyl shikimate-phosphate synthase (epsps) expressed in herbicide-resistant roundup ready GMOs. The approach developed in this study can be used for accurate, cheap, and fast testing of food allergens.

A comprehensive review on novel synthetic foods: Potential risk factors, detection strategies, and processing technologies

“…The LOD and LOQ for mat k target was both 1 mg kg −1 . By integrating DNA microarrays, a multiplex PCR method can be devised to simultaneously identify three endogenous allergens in GM soybean: Gly m Bd 28K, Gly m Bd 30K, and lectin along with the exogenous 5-enolppyruvyl shikimate-phosphate synthase (Kutateladze et al, 2021). For mycotoxins, the effectiveness of three pre-enrichment broths in detecting Salmonella in meat analog burgers using PCR was compared in a study by Sampson et al (2023).…”

Development of an inclusive 580K SNP array and its application for genomic selection and genome-wide association studies in rice

“…In this study, we incorporated GMOspecific loci covering 40,715 markers that will be helpful in rice b r e e d i n g f o r p r e l i m i n a r y s c r e e n i n g o f G M O s contaminations. Previously such microarray-based GMO detection has been applied at a small scale in detection of GM soya, rice and maize lines (Kim et al, 2010;Turkec et al, 2016;Chen et al, 2021;Kutateladze et al, 2021).…”