内源小RNAs的生物合成及其在植物发育中的作用

The Major Endogenous Small RNAs and Their Roles in Plant Development

在真核生物中,具有20-30个核苷酸的小RNAs能够在DNA或RNA水平上广泛调控复杂生理进程。介绍植物中3种主要内源小RNAs:microRNAs、trans-acting siRNAs和heterochromatic siRNAs的生物合成及其在植物发育中的作用。

Small RNAs of 20-30 nucleotides guide regulatory processes at the DNA or RNA level in a wide range of eukaryotic organisms.In this paper,the biogenesis and function of three major classes of endogenous small RNAs in plants： microRNAs,trans-acting siRNAs,and heterochromatic siRNAs,with an emphasis on the roles of these small RNAs in developmental regulation were reviewed.