Polyploidy-associated paramutation in Arabidopsis is determined by small RNAs, temperature, and allele structure

A role for sRNAs in paramuation is emerging, but their nature and mode of action remain elusive. Paramutation between genetically identical epialleles in Arabidopsis allowed the analysis of associated sRNAs (the data deposited here) and revealed differences connected with gene expression, tissue type, and ploidy. Six sRNA libraries prepared from total RNA of seedlings and 14 libraries with sRNAs enriched from flower buds; using diploid or tetraploid Arabidopsis thaliana plants with active or silent epialleles.