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The All-Species Living Tree' Project is a collaboration between various academic groups/institutes, such as ARB, SILVA rRNA database project, and
LPSN List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature ...
, with the aim of assembling a database of
16S rRNA 16S rRNA may refer to: * 16S ribosomal RNA 16 S ribosomal RNA (or 16 S rRNA) is the RNA component of the 30S subunit of a prokaryotic ribosome ( SSU rRNA). It binds to the Shine-Dalgarno sequence and provides most of the SSU structure. The g ...
sequences of all validly published species of ''
Bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
'' and ''
Archaea Archaea ( ; singular archaeon ) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria (in the Archaebac ...
''. At one stage, 23S sequences were also collected, but this has since stopped. Currently there are over 10,950 species in the aligned dataset and several more are being added either as new species are discovered or species that are not represented in the database are sequenced. Initially the latter group consisted of 7% of species. Similar (and more recent) projects include the Genomic Encyclopedia of Bacteria and Archaea (GEBA), which focused on whole genome sequencing of bacteria and archaea.


Tree

The tree was created by
maximum likelihood In statistics, maximum likelihood estimation (MLE) is a method of estimation theory, estimating the Statistical parameter, parameters of an assumed probability distribution, given some observed data. This is achieved by Mathematical optimization, ...
analysis without bootstrap: consequently accuracy is traded off for size and many phylum level clades are not correctly resolved (such as the Firmicutes). (Eukaryotes not present in analysis). This phylogeny is a summary of the 16S rRNA based LTP_01_2022 and contains all type species with validly published names up to January 2022.


See also

* Branching order of bacterial phyla (Woese, 1987) * Branching order of bacterial phyla (Gupta, 2001) * Branching order of bacterial phyla (Cavalier-Smith, 2002) *
Branching order of bacterial phyla (Rappe and Giovanoni, 2003) There are several models of the Branching order of bacterial phyla, the most cited of these was proposed in 1987 paper by Carl Woese Carl Richard Woese (; July 15, 1928 – December 30, 2012) was an American microbiologist and biophysicist. ...
* Branching order of bacterial phyla (Battistuzzi et al.,2004) * Branching order of bacterial phyla (Ciccarelli et al., 2006) *
Branching order of bacterial phyla (Genome Taxonomy Database, 2018) There are several models of the branching order of bacterial phyla, one of these is the Genome Taxonomy Database (GTDB). The GTDB is an initiative to establish a standardised microbial taxonomy based on genome phylogeny, primarily funded by an Aus ...
*
Bacterial phyla Bacterial phyla constitute the major lineages of the domain ''Bacteria''. While the exact definition of a bacterial phylum is debated, a popular definition is that a bacterial phylum is a monophyletic lineage of bacteria whose 16S rRNA genes ...
*
List of Archaea genera This article lists the genera of the Archaea. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). Phylogeny National Center for ...
*
List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ...
*
List of bacterial orders This article lists the orders of the Bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI) and the phylogeny is based on 16S ...
*
LPSN List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature ...
, list of accepted bacterial and archaeal names


References


External links

* http://www.arb-silva.de/projects/living-tree/ {{DEFAULTSORT:All-Species Living Tree Project Bacteria Bacteriology Microbiology Taxonomy (biology) Systems of bacterial taxonomy