对研制的3个含量水平的转基因大豆Mon89788 基体标准物质进行多家实验室的验证研究。研究过程包括转基因大豆中基因组DNA的提取和转基因组分的定量PCR方法确认,标准物质的多家实验室协同实验,以及测量的不确定度评估。多家测定分析结果表明,转基因大豆Mon89788 3种不同外源基因/内源基因含量水平的标准物质参考值和扩展不确定度分别为 0.35%±0.17%,0.61%±0.14%,3.17%±1.70% (k=2)。基体为大豆粉的该标准物质可用于转基因大豆含量的定量检测。
Abstract
Three levels of genetically modified soybeans Mon89788 matrix reference material are developed. Genetically modified soybean genomic DNA extraction and quantitative PCR of transgenic components methods are researched. A multi-laboratory verification and uncertainty evaluation are carried out too.The analysis of multi-laboratory value verification shows that in three different levels of genetically modified soybean Mon89788 reference materials, the transgenic gene / endogenous genes reference value and uncertainty is 0.35%±0.17%,0.61%±0.14%,3.17%±1.70% (k=2), respectively.This set of reference materials that the matrix is soybean grand can be used for the quantitative detection of genetically modified soybeans content.
关键词
计量学 /
转基因大豆 /
Mon89788 /
实时荧光定量PCR /
基体标准物质
Key words
Metrology /
Genetically modified soybean /
Mon89788 /
Quantitative real time PCR /
Matrix reference material
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1]ISO Guide 31-2000,Reference materials-contents of certificates and labels[S].
[2]Drries H, Remus I, Grnewald A,et al.Development of a qualitative, multiplex real-time PCR kit for screening of genetically modified organisms (GMOs) [J].Analytical and Bioanalytical Chemistry,2009, 396(6), 2043-2054.
[3]Ciabatti I, Froiio A, Gatto F, et al. In-house validation and quality control of real-time PCR methods for GMO detection: A practical approach [J].Dev Biol(Basel),2006, 126:79-86.
[4]Liu J, Guo J C, Zhang H B. Development and in-house validation of the event-specific polymerase chain reaction detection methods for genetically modified soybean MON89788 based on the cloned integration flanking sequence [J].Journal of Agricultural and Food Chemistry, 2009, 57(22):10524-10553.
[5]李飞武,李葱葱,董立明,等.转基因大豆MON89788转化体特异性定性PCR检测[J].安徽农业科学,2010, 38(13):82-86.
[6]全浩,韩永志.标准物质及其应用技术[M].第二版.北京:中国标准出版社,2003.
基金
国家转基因生物新品种培育科技重大专项(2008ZX08012003)