Gene silencing is a kind of epigenetic phenomenon discovered in transgenic plants in recent years. 摘要基因沉默是近几年来在转基因植物中发现的一种后生遗传现象。
From long period evolution with plants, plant virus obtains the ability to code gene silencing suppressors against this defense system. 基因沉默系统是植物抵抗病毒侵染的防卫体系,在长期的协同进化过程中,由病毒编码的抑制蛋白可以抵消基因沉默系统的作用。