生物技术进展 ›› 2026, Vol. 16 ›› Issue (4): 833-842.DOI: 10.19586/j.2095-2341.2026.0027

• 转基因检测技术专题 • 上一篇    下一篇

转基因玉米KJ1003实时荧光PCR定性检测方法

赵桐桐(), 陈子言, 张华, 裴欣瑶, 王晨尧, 李佳岢, 王丹, 张月秋, 付伟(), 陈红()   

  1. 农业农村部科技发展中心,北京 100176
  • 收稿日期:2026-02-06 接受日期:2026-04-03 出版日期:2026-07-25 发布日期:2026-09-11
  • 通信作者: 付伟,陈红
  • 作者简介:赵桐桐 E-mail: 2981382909@qq.com
  • 基金资助:
    农业生物育种重大专项(2022ZD040201101)

A Qualitative Detection Method for Genetically Modified Maize KJ1003 by Real-time PCR

Tongtong ZHAO(), Ziyan CHEN, Hua ZHANG, Xinyao PEI, Chenyao WANG, Jiake LI, Dan WANG, Yueqiu ZHANG, Wei FU(), Hong CHEN()   

  1. Development Center of Science and Technology,Ministry of Agriculture and Rural Affairs,Beijing 100176,China
  • Received:2026-02-06 Accepted:2026-04-03 Online:2026-07-25 Published:2026-09-11
  • Contact: Wei FU,Hong CHEN

摘要:

转基因玉米KJ1003是科稷达隆(北京)生物技术有限公司研发的玉米转化体,具有良好抗虫耐除草剂性能,已获得转基因生物安全证书,产业化前景良好。选取KJ1003转化体特征特异性序列作为检测靶点,经引物探针筛选、反应体系优化及特异性、灵敏度、检出限和稳定性试验,并结合8家实验室协同验证,最终构建了适用于KJ1003转化体的荧光PCR定性检测方法。结果表明,该检测方法可特异性扩增158 bp特异性片段,灵敏度与检出限均为0.05%,稳健性良好;8家实验室对方法特异性、检出限、再现性的验证结果均符合相关标准的要求。研究结果为我国对转基因作物的检测和安全监管提供了科学依据和技术支撑。

关键词: 转基因玉米, 抗虫耐除草剂, KJ1003, 实时荧光PCR, 定性检测

Abstract:

The genetically modified maize line KJ1003 is a transformation event developed by Kejidalong (Beijing) Biotechnology Co., Ltd. It exhibits excellent insect resistance and herbicide tolerance, has obtained a genetically modified organism safety certificate, and possesses promising industrialization prospects. In this study, a real-time fluorescent PCR qualitative detection method for the KJ1003 transformation event was established, targeting the specific sequence of KJ1003 through primer and probe design and screening, reaction system optimization, as well as specificity, sensitivity, limit of detection, and robustness tests, together with inter-laboratory validation. The results showed that this method could effectively detect KJ1003 transgenic components and amplify a 158 bp specific fragment, with a detection sensitivity and limit of detection both reaching 0.05% and favorable robustness. The verification results of the method′s specificity, limit of detection and reproducibility conducted by 8 laboratories all complied with relevant standard requirements. This study provides a scientific basis and technical support for the detection and safety supervision of genetically modified crops in China.

Key words: genetically modified maize, insect-tolerant and herbicide-tolerant, KJ1003, real-time PCR, qualitative detection

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