Comparison of spliceosomes across diverse eukaryotes. Eukaryotic relationships follow (Burki et al. 2020) with common taxonomic groupings indicated (left). Parasitic taxa (P) and those that possess trans-splicing (TS) are indicated by dots in columns. Annotated introns/gene shown for each taxon with darker boxes indicating higher intron density. Phytomonas and Perkinsela have no annotated introns. Spliceosome protein presence is indicated with a filled box. Faint colors indicate proteins curated as present. Predicted absence of a protein is indicated by an unfilled box. Cm Nam8 was bioinformatically annotated but could not be identified in mass spectrometry experiments (Reimer et al. 2017).
