Open Tree of Life

Short description: Online phylogenetic tree of life

Open Tree of LifeAvailable in| English

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Website| opentreeoflife.org
Commercial| no
Registration| not required
Launched| September 2015
Current status| active

Content license

| BSD 2-clause (FreeBSD)[1]

The Open Tree of Life is an online phylogenetic tree of life – a collaborative effort, funded by the National Science Foundation.[2][3] The first draft, including 2.3 million species, was released in September 2015.[4] The Interactive graph allows the user to zoom in to taxonomic classifications, phylogenetic trees, and information about a node. Clicking on a species will return its source and reference taxonomy.

The tree of life at the node Eukaryota

## Contents

* 1 Approach
* 2 History
* 3 See also
* 4 References

## Approach

The project uses a supertree approach to generate a single phylogenetic tree (served at tree.opentreeoflife.org[5]) from a comprehensive taxonomy and a curated set of published phylogenetic estimates.

The taxonomy is a combination of several large classifications produced by other projects; it is created using a software tool called "smasher".[6] The resulting taxonomy is called an Open Tree Taxonomy (OTT) and can be browsed on-line.[7]

## History

The project was started in June 2012 with a three-year NSF award to researchers at ten universities. In 2015, a two-year supplemental award was made to researchers at three institutions.

## See also

* Tree of Life Web Project

## References

1. ↑ "OpenTreeOfLife License". https://raw.githubusercontent.com/OpenTreeOfLife/opentree/master/LICENSE.txt.
2. ↑ "Synthesis of phylogeny and taxonomy into a comprehensive tree of life". Proceedings of the National Academy of Sciences of the United States of America 112 (41): 12764–9. October 2015. doi:10.1073/pnas.1423041112. PMID 26385966. Bibcode: 2015PNAS..11212764H.
3. ↑ "Assembling, Visualizing, and Analyzing the Tree of Life". National Science Foundation (NSF). https://www.nsf.gov/funding/pgm_summ.jsp?pims_id=503629.
4. ↑ Pennisi, Elizabeth (21 September 2015). "First comprehensive tree of life shows how related you are to millions of species". Science Magazine. https://www.science.org/content/article/first-comprehensive-tree-life-shows-how-related-you-are-millions-species.
5. ↑ "opentree". Open Tree of Life developers. https://tree.opentreeoflife.org/.
6. ↑ "Automated assembly of a reference taxonomy for phylogenetic data synthesis". Biodiversity Data Journal 5 (5): e12581. 2017. doi:10.3897/BDJ.5.e12581. PMID 28765728.
7. ↑ "tree.opentreeoflife.org". https://tree.opentreeoflife.org/taxonomy/browse.

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