Data from Lunardon et al. (2020)

Plant small RNA gene annotations

Small non-coding RNAs between 20 and 24 nucleotides in length function to regulate gene expression, as well as suppress accumulation of viruses. In plants, there are several distinct types of endogenous small RNAs. MicroRNAs (miRNAs) are produced from single-stranded stem-loop RNA precursors, and function to target mRNAs and long non-coding RNAs for post-transcriptional regulation. In plants most miRNAs are 21 or 22 nucleotides in length. Endogenous short interfering RNAs (siRNAs) arise from double-stranded RNA precursors that are frequently produced by endogenous RNA-dependent RNA polymerases. Some siRNAs are 21 or 22 nucleotides long and can function like miRNAs to post-transcriptionally regulate mRNAs. Many more siRNAs are 24 nts in length, and function to target chromatin-associated non-coding RNAs and reinforce repressive chromatin modifcations. MicroRNAs have been well-annotated in many species, but siRNA locus annotations have lagged.

This website and database provides systematic annotations of all types of endogenous plant small RNA loci

To begin, select a plant from the plants page, or go to the search page. ALL data are freely available in multiple formats.

Check out the about page for detailed descriptions of methodologies used to curate these data

Citation

If you make use of these data and/or this website, please cite: Lunardon et al. (2020) Genome Research https://doi.org/10.1101/gr.256750.119