Effuseotrichosporon Yurkov, Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout, in Liu et al., Studies in Mycology 81: 113 (2015)
Etymology: In reference to the widespread distribution (Lat. effuse) of the species.
Diagnosis: Basidiocarps not known. Sexual reproduction not observed. True hyphae disarticulate into arthroconidia. Pseudohyphae abundant or not. Budding cells present. Fermentation absent. Nitrate and nitrite sometimes utilised. The major CoQ system unknown.
Index Fungorum number: IF814773
Type species: Effuseotrichosporon vanderwaltii (Motaung, Albertyn, Kock, C.F. Lee, S.O. Suh, M. Blackw. & C.H. Pohl) Yurkov, Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout, in Liu et al., Studies in Mycology 81: 113 (2015)
Notes: Trichosporon vanderwaltii was described for a group of strains from different sources (Motaung et al. 2013). These strains formed a sister clade to the brassicae/porosum clades (i.e., Apiotrichum) in the tree drawn from the ITS and LSU D1/D2 sequences but statistical support for this phylogeny was lacking (Motaung et al. 2013). The affinity of T. vanderwaltii to the family Trichosporonaceae was resolved in Liu et al. 2015 but its phylogenetic relationships to other clades of the family remained unclear.
Figure 1. Phylogenetic relationships of yeasts and related taxa in Tremellomycetes (major lineages) obtained by maximum-likelihood analysis of LSU (D1/D2 domains) rRNA gene. Tree topology was backbone-constrained with the well-supported (>85 %) bipartitions of the topology of the seven-genes tree (Liu et al. 2015). Bootstrap percentages (BP) of maximum likelihood and neighbour-joining analyses from 1 000 replicates are shown respectively from left to right on the deep and major branches resolved and in brackets following recognised clades. Note: ns, not supported (BP < 50 %).