植物内源小RNA及其介导的基因沉默途径

摘要

In the paper,the species of plant endogenous RNA and related gene silencing pathways and the constitute and function of main effectors in the silencing pathways were reviewed.In order to further explore the complexity and diversity of regulation process in plant gene expression,the differences in their function between miRNA and siRNA were discussed.The paper provides basic introduction for the utilization of plant endo signal pathway and will prompt the further research work in this field.%阐述了植物内源小RNA的种类及其介导的多种RNA基因沉默途径,RNA沉默途径中的主要效应蛋白及复合物的组成和功能,重点介绍了miRNA介导的基因沉默途径和siRNA介导的基因沉默途径的异同及其功能,为便于了解植物基因表达调控的多层次性和复杂性,进一步挖掘和利用植物内源信号途径提供一定的参考。