Rooting the tree of life by transition analyses

Biology Direct

Table 1 The nomenclature and classification used here for prokaryotes (=Bacteria)

			Example genus
NEGIBACTERIA (subkingdom)
Glidobacteria
Eobacteria
	Chlorobacteria*	Chloroflexi; green non-sulphur	Chloroflexus
	Hadobacteria	Deinococcus/Thermus group	Thermus
	Cyanobacteria		Nostoc
Gracilicutes
	Spirochaetae	Spirochaetes	Treponema
	Sphingobacteria
	Chlorobea	Chlorobi	Chlorobium
	Flavobacteria	CFB group + Fibrobacteres	Cytophaga
Exoflagellata
	Proteobacteria
	Rhodobacteria	α-, β-, γ-proteobacteria	Escherichia
	Thiobacteria	δ-, ε-proteobacteria + Aquificales	Helicobacter
	Geobacteria	Deferribacteres + Acidobacteria +	Geovibrio
	Planctobacteria	Planctomycetes + Chlamydiales +	Pirellula
Eurybacteria
	Selenobacteria		Sporomusa
	Fusobacteria		Fusobacterium
	Togobacteria	Thermotogales	Thermotoga
UNIBACTERIA (subkingdom)
Posibacteria
	Endobacteria	low-GC Gram positives (incl. Mollicutes)	Bacillus
	Actinobacteria	high-GC Gram positives (e.g. Actinomycetales)	Streptomyces
Archaebacteria
	Euryarchaeota	euryarchaeotes (e.g. methanogens)	Halobacterium
	Crenarchaeota	crenarchaeotes	Sulfolobus

* The 10 taxa shown in bold are ranked as phyla. A more detailed classification is given later in the paper, when I explain the small improvements over the previous system [1].
In addition to the taxa listed, three informal names are used for the following higher groups:
glycobacteria (a paraphyletic grade) = Cyanobacteria + Eurybacteria + Gracilicutes
proteates (a clade) = Actinomycetales + Archaebacteria + Eukaryota
neomura (a clade) = Archaebacteria + Eukaryota

ISSN: 1745-6150