This cladogram is a simplified version of figure 2 in Wu & Eisen ("A simple fast and accurate method of phylogenomic inference, 2008, Genome Biology 2008, 9:R151, doi:10.1186/gb-2008-9-10-r151). Also indicated in the tree are the expected possitions of eukaryote sequences with an endosymbiotic origin (indicated as CYANOBACTERIA and MITOCHONDRIA).