与负向选择标记方法相比, 正向选择标记有其独特的优越性, 越来越多的受到人们的关注, 被逐步广泛应用到植物的遗传转化中。本文对近年用于植物遗传转化的正向选择标记原理及应用等进行了综述。

Positive selection marker had been widely accepted by people as selective gene for unique advantage compared with negative selection marker and gradually used in plant genetic transformation. The principle and the applications in recent years of positive selection were described in this article.