FIG 5.

Evolutionary processes shaping proteome evolution in three lineages of CPR bacteria. Each panel displays the species tree from Fig. 1a in cladogram format. The size and color of circles mapped onto interior branches represent the cumulative number of originations (defined as either lateral transfer from outside the lineages examined here or de novo evolution) (a), transfer among the three CPR lineages included here (b), and genomic losses predicted to occur on that branch for all 902 differentially distributed families where gene-species tree reconciliation was possible (c). Abbreviations: Abs., Absconditabacteria; Gra., Gracilibacteria; Sac., Saccharibacteria. SAC1 indicates a monophyletic clade of Saccharibacteria referenced in the text.