用单倍体育种方法获取转基因玉米纯合自交系,减少花粉在环境中释放量,避免基因漂移影响生态环境,绝大部分过程不受区域限制,不受限制区域无花粉散失。 Homozygous transgenic lines of transgenic maize were obtained by haploid breeding method to reduce the amount of pollen released in the environment and to avoid genetic drift affecting the ecological environment. Most of the processes were not restricted by the area and no pollen was lost in the unrestricted area.