'The All-Species Living Tree' Project

'The All-Species Living Tree' Project is a collaboration between various academic groups/institutes, such as ARB, SILVA rRNA database project, and LPSN, with the aim of assembling a database of 16S rRNA sequences of all validly published species of Bacteria and Archaea.

[4][5] The tree was created by maximum likelihood analysis without bootstrap: consequently accuracy is traded off for size and many phylum level clades are not correctly resolved (such as the Firmicutes).

This phylogeny is a summary of the 16S rRNA based LTP_08_2023 and contains all type species with validly published names up to August 2023.

[6][7][8] Methanopyri Nitrososphaerota Thermoproteota Methanococci Thermoplasmata "Archaeoglobia" Thermococci Methanobacteria Methanonatronarchaeia Methanomicrobia Halobacteria Nanobdellales "Thermosulfidibacterota" Aquificota Caldisericota Synergistota Coprothermobacterota Thermotogota Atribacterota Syntrophorhabdia Thermotomaculales Spirochaetota Dictyoglomota "Caldicellulosiruptorales" "Thermosediminibacteria" [incl.

Thermanaeromonas, Desulfovirgula] Fibrobacteria {Fibrobacterota} Gemmatimonadota Calditrichota Ignavibacteriota Chlorobiota Rhodothermota Balneolota Bacteroidota "Melainabacteria" "Cyanobacteriota" Armatimonadota Chloroflexota Deinococcota "Sulfobacillia" "Thermaerobacteria" "Carboxydothermales" "Thermacetogeniales" Moorellales {"Moorellia"} "Calderihabitantales" "Koleobacterales" Zhaonellaceae "Desulfitibacterales" "Syntrophomonadia" Gelria "Symbiobacteriia" Actinomycetota "Thermodesulfobiota" Elusimicrobiota Nitrospirota "Halanaerobiia" Acidobacteriota Chitinivibrionia "Abditibacteriota" Chlamydiota Lentisphaerota Kiritimatiellota Verrucomicrobiota Planctomycetota Thermolithobacteria "Carboxydocellales" "Thermincolia" "Desulfofundulaceae" "Hydrogenisporia" "Selenomonadia" Limnochordia "Desulfotomaculota" "Clostridiia" Fusobacteriota Mycoplasmatota Bacillota Thermodesulfobacteriota "Deferrisomatota" "Bradymonadia" Myxococcota "Desulfuromonadota" Bdellovibrionota Desulfobacterota Desulfovibrionia Campylobacterota Chrysiogenota Deferribacterota Pseudomonadota

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