It can break the natural barriers of gene exchange among organisms in different kindom,phyrum,class,order,family and genus,greatly enlarges the gene pool available for crop breeding,and opens a brand way for crop improvement.

• 它可打破遗传物质分类上门、纲、目、科属的界限，实现基因的界间转移，从而大大拓宽作物遗传改良可资利用的基因源，为农作物品种改良开辟了崭新的途径。