Fig. 6.—Four-cluster likelihood mapping of class II fumarase amino acid sequences testing (A) the monophyly of trichomonads and (B) the separation of trichomonad sequences from other eukaryotic and alpha proteobacterial homologs. In both analyses, sequences were split in four disjoint groups. The occupancies (in percentages) for the seven areas of attraction are indicated. The corners of the triangles are labeled with the corresponding fully resolved tree topologies. Misc. = miscellaneous group of bacteria excluding the archaea