Neighbour-joining (NJ) phylogenetic tree showing taxa-specific separation of M. guilliermondii from M. caribbica. The tree was constructed based on the evolutionary distance calculated using Kimura-2 parameter from the nucleotide sequence of ITS1-5.8S-ITS2. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) is shown next to the branches for values >40%. The bar represents 1% sequence divergence. GenBank accession numbers are mentioned within the parentheses. S. cerevisiae was the outgroup in the analysis. T =Type strain.