A Ratio of conserved orthogroups (OGs) in each genus. The common OG score was calculated as the ratio of the number of OGs maintained in all members of a genus to the total number of OGs, as described by Takashima et al. (2019); B plot showing the pairwise average amino acid identity (AAI) similarity and the rate of shared OGs between strains. Open circles, open triangles, open squares, closed squares, and closed circles represent comparisons within Rhodotorula, within Rhodosporidiobolus, within Sporobolomyces, among different genera in Sporidiobolales, and among different orders in Microbotryomycetes, respectively. The black, green, blue, and yellow markers indicate comparisons within the same species, within the same genus but different species, within the same family but different genera, and among different orders, respectively.