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以小麦、玉米、小米、高粱、狼尾草五个不同属的材料为外源ＤＮＡ供体，经减压渗透转导受体紫稻，从获得的变异材料中各选一份进行了随机扩增多态性ＤＮＡ（ＲＡＰＤ）分析。共用２０个随机引物，其中６个引物扩增出了有差异的多态性ＤＮＡ片段，１个引物可以区分受体材料与变异材料及变异材料间的差异。在以材料两两间的相似率进行的聚类分析中，发现聚类结果与材料变异性状一致，变异材料与受体材料间相似率高达９０．７％，认为变异材料为受体材料在“减压渗透”处理后的真实变异；ＲＡＰＤｓ是检测材料间差异的有效方法。
Wheat, corn, millet, sorghum, Pennisetum five different genus materials as exogenous DNA donor, transdermal transduced by the pressure receptor purple rice, obtained from the selected mutant materials were randomized Add polymorphic DNA (RAPD) analysis. A total of 20 random primers were used. Among them, 6 primers amplified differentially polymorphic DNA fragments. One primer could distinguish the difference between acceptor material, mutants and mutants. In the clustering analysis based on the similarity of two materials, we found that the clustering result is consistent with the variation of material, the similarity between the mutant material and the receptor material is as high as 90.7%, and the variation material is the “ Vacuum infiltration ”after treatment of the real variation; RAPDs is an effective method to detect differences between materials.