Figure 2

Phylogenetic Tree with gene and complex emergence and losses. The pattern of gene and complex emergence and the secondary losses of components of whole complexes is displayed along the tree according to the absence and presence pattern of the ortholog genes in terminal species or in subsets of species concluding the loss in the last common ancestor of all subsequent species. The numbers of gene and complex emergence is indicated in blue (complex emergence/gene emergence). The number of secondary losses are shown in black per affected node. It was discriminated between whole complex losses and gene losses (complex losses/gene losses). The significance of emergence (discriminated between complex and gene emergence) and loss (only gene) events compared to the random model are indicated with '*'. As we restricted our analysis to fungi and metazoans, evolutionary events which have been mapped to the base of the tree ('†') could have evolved at any time before the split.