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Updated: Sep 12, 2025

RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs
Published on: July 11, 2020
[Research progress in transcriptional regulation and biological functions of small nuclear RNAs in plants]
Yue Wu1, Xinyu Li1, Xiaoxia Deng1,2
1College of Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.
Abstract:
Small nuclear RNAs (snRNAs) refer to a class of highly abundant and functionally important non-coding small RNAs that are localized in the eukaryotic nucleus. These snRNAs are highly conserved in different eukaryotes during evolution and form complexes with specific chaperones to fulfill critical biological functions, including precursor messenger RNA (pre-mRNA) splicing and ribosomal RNA (rRNA) modification. Consequently, the regulation of snRNA gene expression is a crucial biological process for plants. In plants, the transcription and processing of snRNAs are regulated by RNA polymerase (Pol), snRNA-activating protein complex (SNAPc), defective in snRNA processing (DSP), and specific cis-elements in the snRNA promoter regions. Proper regulation of snRNA expression is essential for normal plant growth, development, and stress responses. This review summarizes the classification, structures, transcriptional regulation, and biological functions of plant snRNA genes, while outlining future research directions for snRNAs.
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