Through the simple method of CTAB, total DNA of velvetleaf was extracted from sprouts of velvetleaf in which there was a little secondary metabolites.

本研究利用黄酮等次生代谢物未大量合成的芽为材料，采用化CTAB法提取DNA，获得高纯度、高产量的DNA。

Because the mature tissue of velvetleaf contains lots of secondary metabolites such as alkaloid and phenolic, it is difficult to obtain high purity DNA from mature tissue of velvetleaf.

摘要成熟组织中酚类、黄酮类等次生代谢物较多，要从中提取出高纯度的DNA比较困难。