Tartumyces Tedersoo, 2025

Tedersoo, Leho, Hosseyni Moghadam, Mahdieh S., Panksep, Kristel, Prins, Victoria, Anslan, Sten, Mikryukov, Vladimir, Bahram, Mohammad, Abarenkov, Kessy, Kõljalg, Urmas, Esmaeilzadeh-Salestani, Keyvan, Pawłowska, Julia, Wurzbacher, Christian, Ding, Yi, Alkahtani, Saad Hussin & Nilsson, R. Henrik, 2025, Thirty novel fungal lineages: formal description based on environmental samples and DNA, MycoKeys 124, pp. 1-121 : 1-121

Tartumyces Tedersoo gen. nov.

Type species.

Tartumyces setoi Tedersoo .

Diagnosis.

Distinguishable from other fungi based on diagnostic nucleotide signatures in ITS 2 (positions 289–300 in type species gggtttgcaaac, one mismatch allowed) and LSU D 4 (positions 624–633 in type species and 601–610 in S. cerevisiae gaatttattc, one mismatch allowed). Forms a monophyletic, least inclusive clade in Tartumycetaceae, covering sequences EUK 1123648 and EUK 1138300 (Figs 1 , 61 ).

Notes.

Recognized based on eDNA sequences only. Comprises around 10 potential species.

Figures

Figure 1. Maximum Likelihood SSU- 5.8 S-LSU phylogram indicating placement of novel lineages in the fungal kingdom as highlighted in a coloured shade and red font. Previously described taxonomic clades are collapsed. All branches of Sumavosporidiomycetes and Gelotisporidiomycetes are shortened two-fold. Poorly supported branches with bootstrap values below 95 % / 99 % are indicated in blue. The original tree with bootstrap values and uncollapsed branches is indicated in Suppl. material 1.

Figure 61. Maximum Likelihood SSU- ITS - LSU phylogram indicating the position of Tartumyces setoi within Tartumycota, with ultra-rapid bootstrap values indicated. Other genus-level groups are collapsed. Members of various fungal phyla were used as an outgroup.