把一种植物嫁接到另一种植物上面便有可能引起遗传性的改变。达尔文曾经注意到这个事实,并且认为这是由于嫁接而产生的杂种,例如他曾经引证比扎里亚(Bizzaria orange)甜橙是甜橙和柠檬的无性杂种。在这杂种果实中有一部分果实的形状是很特殊的,果实的一部分有橙子的性状,而在另一部分中则具有柚子的性状。我国清代的园艺家陈淏子在他所作的花镜一书中,也曾详细地描述了植物经过嫁接以后可以发生形态上巨大的变化。他写道“凡木之必须接 Grafting a plant onto another plant can cause hereditary changes. Darwin once noticed this fact, and considered it a hybrid due to grafting. For example, he quoted a Bizzaria orange sweet orange as a vegetative hybrid of sweet oranges and lemons. Some of the fruits in this hybrid fruit are quite special in shape, with part of the fruit having orange traits and in the other part having the characteristics of grapefruit. In his book Anthurium, Chen Yuanzi, a horticulturist in Qing Dynasty in China, also described in detail the great morphological changes that plants can undergo after grafting. He wrote "Every wooden must be connected