Gelotisporidiales 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

Gelotisporidiales Tedersoo ord. nov.

Type family.

Gelotisporidiaceae Tedersoo .

Diagnosis.

Distinguishable from other fungi based on diagnostic nucleotide signatures in SSU V 8 (positions 1541–1550 in S. cerevisiae ggatcagtca; no mismatch allowed) and LSU D 1 (positions 302–311 in the type species and 305–314 in S. cerevisiae cgcgccatct; one mismatch allowed). Forms a monophyletic, least inclusive clade in Gelotisporidiomycetes, covering sequences EUK 1138731 , EUK 1138718 , EUK 1138568 , EUK 1138757 , EUK 1100925 , EUK 1105586 , EUK 1105726 , EUK 1105789 , EUK 1101184 , EUK 1202629 , EUK 1201985 , EUK 1104844 , and EUK 1123671 (Fig. 1 ).

Notes.

Recognized based on eDNA sequences only. Currently includes Gelotisporidiaceae (fam. nov.) and other potentially family-level groups represented by sequences EUK 1100925 (unspecified soil in Tibet), EUK 1105586 (lake water in Sweden), EUK 1105726 (forest soil in Sweden), and EUK 1105789 (forest soil in Sweden).

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.