Class I RNAs are ubiquitous in and restricted to dictyostelid social amoebas. (Upper) Class I RNA loci were searched for in the genomes of 16 different Dictyostelia (Supplemental Table S1). The number of hits identified by the classifier is indicated as well as the number of these loci that passed manual curation. The number of curated loci with DUSE and the TGTG box at the correct distance are shown. (Bottom) Result from searches for Class I RNA loci outside Dictyostelia. Lifestyle indicates unicellular or multicellular organisms. Fruiting bodies denotes if the organism lifestyle involves formation of fruiting bodies. CM indicates number of candidates identified with a CM score ≥ 25. Headings Classifier and Curated as described above. Further information about outgroup Class I RNA candidates is available in Supplemental Table S4.
