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On-Site Molecular Detection of Soil-Borne Phytopathogens Using a Portable Real-Time PCR System

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Detection method for genetically modified potato using an ultra-fast PCR system.

Min Ki Shin^1,2, Seon Min Jeon², Yong Eui Koo²

¹Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826 Republic of Korea.

Food Science and Biotechnology

|February 7, 2023

Summary

A new ultra-fast PCR method detects genetically modified (GM) potatoes rapidly. This technology is crucial for monitoring unauthorized GMOs in food and feed, especially given Korea's strict zero-tolerance policy.

Keywords:

Event specific qualification GM potato Monitoring Solanum tuberosum UF-PCR

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Last Updated: Aug 11, 2025

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Area of Science:

Agricultural biotechnology
Molecular biology
Food safety

Background:

Genetically modified (GM) potatoes are developed for enhanced traits like pest resistance and quality.
The Republic of Korea enforces a zero-tolerance policy on unauthorized genetically modified organisms (GMOs), necessitating robust detection methods.
Low self-sufficiency rates in crops highlight the need for effective GMO assessment in food and feed.

Purpose of the Study:

To develop a rapid detection method for specific GM potato events (SPS-Y9 and EH92-527-1).
To evaluate the specificity, sensitivity, and applicability of the developed method for GMO analysis.

Main Methods:

Development of a novel detection technique utilizing an ultra-fast polymerase chain reaction (UF-PCR) system.
Validation of the UF-PCR method for its accuracy and efficiency in identifying target GM potato events.

Main Results:

The developed UF-PCR method successfully detected the two targeted GM potato events.
UF-PCR significantly reduced the detection time by over 50% compared to conventional PCR methods.
The method demonstrated high specificity, sensitivity, and applicability for GMO analysis.

Conclusions:

The rapid UF-PCR method offers a viable solution for detecting specific GM potato events.
This technology can aid in monitoring unauthorized GMOs in agricultural products, supporting regulatory compliance.
The UF-PCR system holds potential for field-based GMO analysis due to its speed and efficiency.