Abstract: Maize(Zea mays L) is an important food-supply crop. Maize transformation is an effective method of crops genetic improvement. This paper summarizes the selectable criteria of receptor, compares the transformation methods, such as agrobacterium-mediated technique, gene gun bombardment, pollen tube pathway transgenic technique etc., and also investigates how to screen positive events of transgenic plants.

Key words: maize, receptor system, transformation, selectable marker

摘要： 玉米是重要的粮食作物，玉米的遗传转化取得了重大成就，而玉米的遗传转化又是玉米遗传改良的有效手段。总结了玉米转化过程中受体的选择标准，比较了各种转化方式，如：农杆菌介导法、基因枪法、花粉管通道法，并探讨了如何有效地选择转化后的阳性事件。

关键词: 玉米, 受体系统, 农杆菌转化, 选择标记