Phylogenetic trees derived from maximum-likelihood analysis based on the concatenated sequences of the ITS and D1/D2 domain of LSU rRNA, illustrating the positions of the novel yeast species in the genera Starmerella (A), Kazachstania (B) and Pichia (C). The tree backbones were developed using MEGA 7.0. The bootstrap support values (BS) ≥ 50% from ML analysis and Bayesian posterior probabilities (BPP) ≥ 0.90 are depicted on the branches, and a dash (“-”) indicates a value < 0.90 (BPP). Newly described species are indicated in bold. Scale bar, 2% sequence difference. T, type strains.