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抗除草剂转基因作物实时荧光定量pcr检测

DOI: 10.3724/SP.J.1145.2009.00866, PP. 866-870

Keywords: 抗除草剂转基因作物,sybrgreeni荧光染料,实时荧光定量pcr,溶解曲线,检测

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Abstract:

建立了一种以sybrgreeni为结合染料、快速准确检测转抗除草剂基因成分的实时荧光定量pcr方法.以转基因大豆与转基因玉米标准品为材料,通过使用特异性引物和sybrgreeni结合染料实时荧光定量pcr技术,对转基因农作物中外源抗除草剂基因进行了定量检测,绘制了两种基因扩增的标准曲线图,根据标准曲线方程计算外源基因含量;并作了溶解曲线、检测方法检测灵敏度和精密度的分析.研究发现,两者标准曲线方程线性关系良好,r2值分别达到0.9939与0.9924.通过已知标准品进行验证,实测值与真值接近,与实际含量的相对偏差是6.52%和7.90%.结果表明,sybrgreeni结合染料法完全可以用于转基因农作物定量pcr检测.图5表2参11

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