Abstract

Noncoding RNA (ncRNA), such as microRNA (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs) play roles in plant growth, development, and response to environmental cues via diverse manners. Splicing factors are critical for precursor messenger RNAs (pre-mRNAs) splicing and alternative splicing. Strikingly, over the past few years, an increasing number of studies demonstrated that splicing factors couple splicing to other processes, such as ncRNA biogenesis, nuclear retention, and cytoplasmic export of various RNAs, and even translation. Here, we review the current status of the noncanonical functions of splicing factors in the ncRNAs processing, retention and export of RNAs, and translation in plants.

摘要

非编码RNA（ncRNA），例如microRNA（miRNA），长ncRNA（lncRNA）和环状RNA（circRNA）在植物生长，发育以及通过各种方式对环境线索的响应中发挥作用。剪接因子对于前体信使RNA（pre-mRNA）剪接和替代剪接至关重要。令人惊讶的是，在过去的几年中，越来越多的研究表明，剪接因子将剪接与其他过程耦合在一起，例如ncRNA的生物发生，核保留和各种RNA的细胞质输出，甚至翻译。在这里，我们审查了ncRNA加工，RNA的保留和输出以及植物翻译中剪接因子的非规范功能的当前状态。