National Center for Biotechnology Information (NCBI) taxonomy was initially used to decorate the genome tree via tax2tree. The 16S rRNA-based Greengenes taxonomy is used to supplement the taxonomy particularly in regions of the tree with no cultured representatives. List of Prokaryotic names with Standing in Nomenclature (LPSN) is used as the primary taxonomic authority for establishing naming priorities. Taxonomic ranks are normalised using phylorank and the taxonomy manually curated to remove polyphyletic groups.[3][4][5][6][7]
Cladogram was taken from the GTDB release 08-RS214 (28th April 2023).[8][9][10] The position of clades with a "question mark" are based on the additional phylogeny of the 16S rRNA-based LTP_12_2021 by The All-Species Living Tree Project.[11][12][13]
^Parks, DH; Chuvochina, M; Waite, DW; Rinke, C; Skarshewski, A; Chaumeil, PA; Hugenholtz, P (November 2018). "A standardized bacterial taxonomy based on genome phylogeny substantially revises the tree of life". Nature Biotechnology. 36 (10): 996–1004. bioRxiv10.1101/256800. doi:10.1038/nbt.4229. PMID30148503. S2CID52093100.
^ abcRuize Xie, Yinzhao Wang, Danyue Huang, Jialin Hou, Liuyang Li, Haining Hu, Xiaoxiao Zhao, Fengping Wang: Expanding Asgard members in the domain of Archaea sheds new light on the origin of eukaryotes. In: Science China Life Sciences, vol. 65, p. 818–829, April 2022. doi:10.1007/s11427-021-1969-6, PMID 34378142. Epub: Aug. 6, 2021. Along with:Njordarchaeota, a new candidate for a sister group to eukaryotes. EurekAlert!, Oct. 20, 2021.
^ abc
Fabai Wu, Daan R. Speth, Alon Philosof, Antoine Crémière, Aditi Narayanan, Roman A. Barco, Stephanie A. Connon, Jan P. Amend, Igor A. Antoshechkin, Victoria J. Orphan: Unique mobile elements and scalable gene flow at the prokaryote–eukaryote boundary revealed by circularized Asgard archaea genomes. In: Nature Microbiology volume 7, p. 200–212, Jan 13, 2022. doi:10.1038/s41564-021-01039-y, PMID 35027677, PMC8813620. See also Extended Data Fig. 2.