Wei Jun, Lu Xiu-jun, Zhang Xiao-lin, Mei Mei, Huang Xiao-li
College of Forestry, Shenyang Agricultural University, Shenyang 110866, China.
College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China.
Yi Chuan. 2017 Jan 20;39(1):14-21. doi: 10.16288/j.yczz.16-268.
In plants, microRNAs (miRNAs) are a class of non-coding small RNAs that play important roles in various biological processes, such as seed development, dormancy and germination. In these stages, seeds are regulated by various extrinsic environmental factors and intrinsic hormones. Different species of seeds have distinct development and dormancy characteristics. Recent investigations have identified more and more miRNAs to regulate seed morphogenesis, material metabolism and stress response capacities through hormonal signal transduction, antioxidant effects and transcription factors, etc. In this review, we summarize recent progresses on regulatory mechanisms of miRNAs, and also complex multilevel regulation of miRNAs in the process of seed development, dormancy and germination. We hope to provide insights into further research.
在植物中，微小RNA（miRNA）是一类非编码小RNA，在种子发育、休眠和萌发等各种生物学过程中发挥重要作用。在这些阶段，种子受到各种外在环境因素和内在激素的调控。不同种类的种子具有不同的发育和休眠特性。最近的研究已经鉴定出越来越多的miRNA，它们通过激素信号转导、抗氧化作用和转录因子等调节种子形态发生、物质代谢和应激反应能力。在本综述中，我们总结了miRNA调控机制的最新进展，以及miRNA在种子发育、休眠和萌发过程中的复杂多级调控。我们希望为进一步的研究提供见解。
