远缘杂交的实质是分子水平的片段杂交 ,进化过程中物种间的渐渗杂交是远缘杂交的自然形式 ,从而认为物种间分子水平上的片段杂交具有进化意义。离子束介导外源全DNA转化具有相似的机理。一些渐渗杂交引起的进化现象 ,也可为离子束介导外源全DNA转化技术的应用提供思路 The essence of distant hybridization is the molecular-level fragment hybridization. The introgression crosses between species during the evolutionary process are the natural forms of distant hybridization. Therefore, it is considered that the molecular hybridization between species has evolutionary significance. Ion beam-mediated foreign all DNA transformation has a similar mechanism. Some evolutionary phenomena caused by introgression hybridization may also provide ideas for the application of ion beam-mediated exogenous DNA transformation technology