Evolutionary loss of individual 8-oxo-G repair proteins among fungi. Loss of a specific repair protein is indicated by the homologue name in the outlined branches. The retention of MutM in Sz.japonicus marked as dashed box. The basidiomycetes are the only subgroup harbouring all three 8-oxo-G repair components. The schematic tree is based on Fitzpatrick et al., 2006 .