Figure 2.

Detection of minor spliceosome-specific snRNAs in a diverse set of eukaryotic organisms. Circos plot with heatmap of the number of detected gene copies for U11, U12, U4atac and U6atac snRNA in a select set of eukaryotic organisms. High confidence snRNAs were identified using a combination of blastn and cmsearch, according to inclusion thresholds described in the methods. The outer ring is a heatmap for the number of minor introns detected in each organism, as shown in Figure 1. Species are color-coded by phylum, as in Figure 1. For a full list of intron numbers in all 263 eukaryotic organisms considered, see also Supplementary Table S4. For a full list of both high and low-confidence snRNA gene copy counts, see also Supplementary Table S7. See also Supplementary Figures S24-S25.