Gelotisporidiaceae 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

Gelotisporidiaceae Tedersoo fam. nov.

Type genus.

Gelotisporidium Tedersoo .

Diagnosis.

Distinguishable from other fungi based on a diagnostic nucleotide signature in LSU D 2 (positions 613–627 in type species and 692–696 in S. cerevisiae cccttgggcgcaaag; one mismatch allowed). Forms a monophyletic, least inclusive clade in Gelotisporidiales, covering sequences EUK 1138568 , EUK 1138757 , EUK 1100418 , EUK 1138778 , EUK 1202629 , EUK 1201985 , EUK 1104844 , EUK 1101158 , and EUK 1123671 (Fig. 1 ).

Notes.

Recognized based on eDNA sequences only. Includes Gelotisporidium and several genus-level groups represented by sequences EUK 1138568 (forest soil in New Zealand), EUK 1138757 (forest soil in New Zealand), EUK 1100418 (permafrost in Canada), EUK 1138778 (forest soil in New Zealand), EUK 1202629 (forest soil in Finland), and EUK 1123671 (forest soil in Estonia).

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.