Taqman实时定量PCR技术检测大豆转基因成分

被引:5
作者
王小花 [1 ]
傅春玲 [1 ]
王国卿 [2 ]
洪承皎 [1 ]
机构
[1] 苏州大学放射医学与公共卫生学院
[2] 苏州大学基础医学与生物科学学院
关键词
实时定量PCR; TaqMan探针; 抗草甘膦转基因大豆;
D O I
10.13684/j.cnki.spkj.2009.02.052
中图分类号
S565.1 [大豆];
学科分类号
0901 ;
摘要
采用Taqman探针PCR技术,建立食品中大豆抗草甘膦转基因成分的定量检测方法。通过设计特异性引物,扩增内源基因lectin和35S启动子,建立两种基因的拷贝数-CT标准曲线,根据标准曲线方程计算样品中的转基因成分。结果表明,lectin和35S启动子基因标准曲线线性关系好,R2值分别为0.9934和0.9954,该方法对已知转基因成分含量的样品检测回收率为98%~128%,检测低限为0.025 ng。本方法具有快速、灵敏、准确、特异性高、等优点,可用于食品中大豆转基因成分的定量检测。
引用
收藏
页码:264 / 268
页数:5
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