Six cultivars of Zihua, Bayuelu, Jiangjun, 73-8, 96-9, and 9z622 were used to extract high-quality genomic DNA by using the improved SDS method.

• 以紫花、八月绿、将军、73-8、96-9、9z622等6个普通菜豆品种为试材,采用改良的SDS法提取了高质量的基因组DNA。