本实验研究以中药材三七的叶子、肉苁蓉的茎、宁夏枸杞的果实、黄芪的根为材料,对改进CTAB法、SDS法提取的基因组DNA进行了比较研究。由于四种中药材所含成分有很大的差别,所得到的DNA样品在直观上也有很大的区别。结果表明,改良CTAB法适合四种中药材基因组DNA的提取。 In this experiment, genomic DNA extracted by improved CTAB method and SDS method was compared with the leaves of Chinese medicinal materials Panax notoginseng, the stems of Cistanche, the fruit of Lycium barbarum and the root of Astragalus membranaceus. Due to the large differences between the ingredients contained in the four kinds of Chinese herbal medicines, the obtained DNA samples are also visually very different. The results showed that the modified CTAB method was suitable for the extraction of genomic DNA from four kinds of Chinese herbal medicines.