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黄花蒿ISSR-PCR反应体系的优化 被引量:4

Optimization for the Reaction System of Southernwood ISSR-PCR
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摘要 目的:建立黄花蒿(Artemisia annua L.)的ISSR最佳反应体系及PCR扩增参数,为今后利用ISSR标记技术开展黄花蒿种间遗传多样性分析提供一个标准化程序。方法:以黄花蒿DNA为材料,分析了ISSR反应体系中的DNA、Mg^2+、dNTPs浓度,TaqDNA聚合酶用量以及退火温度对ISSR-PCR扩增的影响。结果:建立了重复性好,分辨率高的ISSR反应体系,即在25止反应体系中,模板DNA浓度为15—45ng,2.5μL的10倍Buffer(Mg^2+ free)缓冲液,MgCl2 2.0mmol/L,dNTPs为0.15mmol/L,Taq酶1.0U,引物1.0μmol/L;扩增程序为:94℃预变性5min;94℃变性30s,引物在筛选后的最佳退火温度退火45s,72℃延伸2min,共计40个循环,循环结束后在72℃延伸5min。结论:建立了适用于黄花蒿的ISSR反应体系,为今后利用ISSR标记技术开展黄花蒿种间遗传变异分析和构建遗传图谱奠定了基础。 Objective: In this paper, we analyzed the influence of DNA, Mg^2+ , dNTPs and Taq DNA polymerase concentration, and annealing temperature of ISSR-PCR amplification, using the materials of southemwood DNA. The stable and reproducible optimal reaction system of amplification parameter was established. This result provided a standardizing process for the analysis of interspecies genetic diversity of southemwood.
作者 邓婧 陈新
出处 《成都中医药大学学报》 2006年第3期51-53,共3页 Journal of Chengdu University of Traditional Chinese Medicine
基金 国家中医药管理局课题
关键词 黄花蒿 ISSR反应体系 Southemwood (Artemisia annua L) ISSR reaction system
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