Ruderaliomycetes Tedersoo

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

Ruderaliomycetes Tedersoo class. nov.

Type order.

Ruderaliales Tedersoo .

Diagnosis.

Distinguishable from other fungi based on a diagnostic nucleotide signature in LSU D 2 (positions 631–640 in the type species and 564–573 in S. cerevisiae acggatacgg; one mismatch allowed). Forms a monophyletic, least inclusive clade in Mortierellomycota, covering sequences EUK 1138161 , EUK 1137899 , EUK 1124460 , EUK 0531800 , EUK 1103744 , EUK 1103025 , EUK 1103555 , EUK 1103599 , EUK 1203462 , and EUK 1700231 (Fig. 1 ).

Notes.

Recognized based on eDNA sequences only. Encoded as clade GS 49 in EUKARYOME v 1.9. Currently harbors the single order Ruderaliales (ord. nov.). Comprises potentially 40–50 species. Detected in soil (98.5 % out of the 329 records) and sediments (1.5 %) in cold temperate to hot 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.