烤后烟叶多重 PCR 反应体系的优化

Journal of Zhengzhou University of Light Industry (Natural Science Edition)(2015)

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Abstract
以烤烟品种中烟100为模板,利用两对 SCAR 引物,采用单因素和正交优化试验,研究烤后烟叶多重 PCR 反应体系中各主要因素的影响情况,建立了适合烤后烟叶多重 PCR 扩增的最佳反应体系:20μL 体系中含模板 DNA 45 ng,Mg2+浓度2.50 mmol/ L,dNTP 浓度0.40 mmol/ L,Taq 酶用量4.00 U.该体系多重扩增条带清晰,可缩短鉴别时间,为利用多重 PCR 技术鉴别烤烟 DNA 指纹图谱奠定了基础.
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