State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China.
State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
Genomics Proteomics Bioinformatics. 2014 Apr;12(2):64-71. doi: 10.1016/j.gpb.2014.04.003. Epub 2014 Apr 24.
In plants, small RNAs (sRNAs) usually refer to non-coding RNAs (ncRNAs) with lengths of 20-24 nucleotides. sRNAs are involved in the regulation of many essential processes related to plant development and environmental responses. sRNAs in plants are mainly grouped into microRNAs (miRNAs) and small interfering RNAs (siRNAs), and the latter can be further classified into trans-acting siRNAs (ta-siRNAs), repeat-associated siRNAs (ra-siRNAs), natural anti-sense siRNAs (nat-siRNAs), etc. Many sRNAs exhibit a clustered distribution pattern in the genome. Here, we summarize the features and functions of cluster-distributed sRNAs, aimed to not only provide a thorough picture of sRNA clusters (SRCs) in plants, but also shed light on the identification of new classes of functional sRNAs.
在植物中，小 RNA（sRNA）通常是指长度为 20-24 个核苷酸的非编码 RNA（ncRNA）。sRNA 参与了许多与植物发育和环境响应相关的基本过程的调节。植物中的 sRNA 主要分为 microRNA（miRNA）和 small interfering RNA（siRNA），后者可进一步分为转座作用 siRNA（ta-siRNA）、重复相关 siRNA（ra-siRNA）、天然反义 siRNA（nat-siRNA）等。许多 sRNA 在基因组中呈现出簇状分布模式。在这里，我们总结了簇状分布 sRNA 的特征和功能，旨在不仅提供植物 sRNA 簇（SRC）的全面描述，还阐明了新类功能 sRNA 的鉴定。
