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本文对芸薹种（ Ｂｒａｓｓｉｃａ ｃａ ｍ ｐｅｓｔｒｉｓ ，２ｎ ＝ ２０） 蔬菜基因组 Ｄ Ｎ Ａ 进行了 Ｒ Ａ Ｐ Ｄ 初步分析， 并就 Ｒ Ａ Ｐ Ｄ－ Ｐ Ｃ Ｒ 反应条件的优化进行了探讨。结果表明：各个亚种或变种的品种之间存在着丰富的遗传多样性。
In this paper, R A P D of genomic D N A in Brassica species (Brassica ca m pestris, 2n = 20) was analyzed and the optimization of R A P -P C R reaction conditions was also discussed. The results showed that there is abundant genetic diversity among varieties of each subspecies or variety.