Support of various bipartitions from RGC_CAM and RGC_non-CAM sites.

∧Key: c  =  S. cerevisiae, p  =  S. paradoxus, m  =  S. mikatae, k  =  S. kudriavzevii, and b  =  S. bayanus; each bipartition is named after the group formed by two of the five species. Analysis of RGC_CAMs and RGC_non-CAMs in five species means that each informative site with contain an amino acid character shared by three species and a different amino acid character shared by the other two species. Because there are 10 possible bipartitions for an unrooted tree from 5 species, this means that each informative site will support one of ten bipartitions. Given that the accepted unrooted phylogeny is ((c,p),m,(k,b)), each of the ten bipartitions either support it by grouping (c,p) and (k,b) (as the “kb” and “cp” bipartitions do) or contradict it by separating those species (as the other bipartitions do). Thus the percentage of RGC_CAM sites that support the accepted yeast phylogeny is 80.0% (kb + cp) while the RGC_non-CAM support is only 56.9%.