Figure 1
From: An evolutionary ratchet leading to loss of elongation factors in eukaryotes
Cladogram showing presence and absence of elongation factors across eukaryotes. The tree summarizes current knowledge of the taxonomic grouping of the species considered here. Polytomies are present where branching order is unknown or contentious. Colored shading behind branches indicates major lineages, as per the color key in the top left. Circles show presence and absence of intact (opaque) or degraded (semi-transparent) elongation factors, with colors indicating factor identity according to the top left key.