Fig. 2

a Maximum likelihood phylogenetic tree, based on concatenated seven gene sequences (ITS, LSU, SSU, CYTB, RPB1, RPB2, TEF1), extracted from WGS of the respective type strains (superscript T) or from the available genomes, showing the phylogenetic relationship of N. kalamii with closely related members of Tremellomycetes. The gene fragment lengths in base pairs (bp) are given in parenthesis: ITS (621 bp); LSU (611 bp); SSU (517 bp); CYTB (339 bp); RPB1 (317 bp); RPB2 (1282 bp); TEF1 (1084 bp). Bootstrap values from 1000 replications are shown at branch points. Bar = 0.1 substitution per site. GenBank accession numbers of the sequences are listed in Additional file 1: Table S1. b WGS Maximum likelihood phylogeny of Naganishia kalamii reconstructed using a concatenated alignment of universally distributed yeast genes. Branch fidelity used two different approaches, Ultrafast bootstraps and Gene Concordance Factors, which were added next to its corresponding branches