生物技术进展 ›› 2025, Vol. 15 ›› Issue (2): 276-286.DOI: 10.19586/j.2095-2341.2024.0208

• 研究论文 • 上一篇    

转基因耐除草剂大豆LP012-1转化体实时荧光定量PCR检测方法的研究

张月秋1(), 傅芳奇1(), 张华1, 陈一帆2, 王晨尧1, 蒋红叶1, 李亚辉3, 廖一尘1, 王丹1, 孙宇2, 付伟1(), 陈红1()   

  1. 1.农业农村部科技发展中心,北京  100176
    2.上海市农业科学院,上海  201199
    3.江苏省农业科学院,农产品质量安全与营养研究所,南京 210014
  • 收稿日期:2024-12-27 接受日期:2025-02-12 出版日期:2025-03-25 发布日期:2025-04-29
  • 通讯作者: 付伟,陈红
  • 作者简介:张月秋 E-mail: zhangyueqiu903@163.com
    傅芳奇 E-mail: 2570167864@qq.com
  • 基金资助:
    农业生物育种国家科技重大专项(2022ZD04020)

Research of Detection Method for Genetically Modified Herbicide-tolerant Soyabean LP012-1 Transformant by Quantitative Real-time PCR

Yueqiu ZHANG1(), Fangqi FU1(), Hua ZHANG1, Yifan CHEN2, Chenyao WANG1, Hongye JIANG1, Yahui LI3, Yichen LIAO1, Dan WANG1, Yu SUN2, Wei FU1(), Hong CHEN1()   

  1. 1.Development Center of Science and Technology,Ministry of Agriculture and Rural Affairs,Beijing 100176,China
    2.Shanghai Academy of Agricultural Sciences,Shanghai 201199,China
    3.Institute of Food Safety and Nutrition,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
  • Received:2024-12-27 Accepted:2025-02-12 Online:2025-03-25 Published:2025-04-29
  • Contact: Wei FU,Hong CHEN

摘要:

转化体标准化检测方法为生物育种产业化的应用和定量标识制度实施提供了重要的技术支撑。基于插入序列左边界的信息,以耐除草剂大豆LP012-1转化体为研究对象,建立了实时荧光定量PCR(quantitative real-time PCR,qPCR)检测方法。以外源插入序列位点左边界为靶标序列设计引物及其相应的探针,筛选获得了最优的引物组合,并优化引物探针浓度和退火温度,确定线性动力学范围在0.018~100 ng,检出限和定量限分别为0.05%、0.10%;正确度、精密度、实验室内稳健性和实验室间的联合验证误差均小于25%。研究建立的qPCR检测方法特异性好、灵敏度高、稳健性强,可以为耐除草剂转基因大豆LP012-1的安全监管提供技术支撑,并服务于生物育种商业化。

关键词: 转基因大豆, 实时荧光定量PCR, LP012-1转化体

Abstract:

The standardized genetically modified detection's method provides important technical support for the industrial application and quantitative identification system implementation of biological breeding. Based on the left boundary of the foreign insertion sequence, a quantitative real-time PCR (qPCR) detection method was established with the genetically modified soybean LP012-1 with genetically modified herbicide-tolerant soyabean selected as the research object. The target sequence of the left boundary of the foreign insertion sequence was designed as the primer and its corresponding probe, and the optimal primer combination was selected by screening. The primer and probe concentrations and annealing temperature were optimized, and the linear dynamic range was determined to be from 0.018 to 100 ng. The detection limit and the quantitative limit were 0.05% and 0.10%, respectively. The correctness, precision, robustness, and joint validation error between laboratories were less than 25%. The qPCR detection method established in this study has good specificity, high sensitivity, and strong robustness, which can provide technical support for the safety supervision of transgenic soybean LP012-1 and serve the commercialization of biological breeding.

Key words: genetically modified soyabean, quantitative real-time PCR, LP012-1 transformant

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