Paraspizellomycetales 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

Paraspizellomycetales Tedersoo ord. nov.

Type family.

Paraspizellomycetaceae Tedersoo .

Diagnosis.

Distinguishable from other fungi based on a diagnostic nucleotide signature in LSU D 1 (positions 128–142 in type species and 123–137 in S. cerevisiae cggttcgccggtgcg or gggttcttacctatg or gggttccacctatgc; one mismatch allowed). Forms a monophyletic, least inclusive clade in Spizellomycetes, covering sequences EUK 1138322 , EUK 1152022 , EUK 1187448 , EUK 1202178 , EUK 1187441 , EUK 1187447 , UDB 014658 , EUK 1100628 , EUK 1123745 , and EUK 1139262 (Fig. 1 ).

Notes.

Recognized based on eDNA sequences only. Encoded as clade GS 14 in EUKARYOME v 1.9. Currently includes Paraspizellomycetaceae (fam. nov.) and one or more potentially family-level groups represented by sequences EUK 1138322 , EUK 1152022 (both forest soil in New Zealand), EUK 1187448 (forest soil in Chile), and EUK 1202178 (tundra soil in Norway). Comprises potentially around 50–70 species. Detected in soil (94.6 % out of the 159 records), sediments (4.2 %), and freshwater (1.2 %) in tundra to tropical biomes across all continents except Antarctica.

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.