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‘Tree of Life’ for 2.3 million species of animals, plants, fungi and microbes released

A first draft of the “tree of life” for the roughly 2.3 million named species of animals, plants, fungi and microbes -- from platypuses to puffballs -- has been released.

A collaborative effort among eleven institutions, the tree depicts the relationships among living things as they diverged from one another over time, tracing back to the beginning of life on Earth more than 3.5 billion years ago.

Tens of thousands of smaller trees have been published over the years for select branches of the tree of life -- some containing upwards of 100,000 species -- but this is the first time those results have been combined into a single tree that encompasses all of life. The end result is a digital resource that available free online for anyone to use or edit, much like a “Wikipedia” for evolutionary trees. 

“This is the first real attempt to connect the dots and put it all together,” said principal investigator Karen Cranston of Duke University. “Think of it as Version 1.0.” 

The current version of the tree -- along with the underlying data and source code -- is available to browse and download at https://tree.opentreeoflife.org.

It is also described in an article appearing Sept. 18 in the Proceedings of the National Academy of Sciences.

 

Story source: Duke University news release, 18 Sep 2015

Journal Reference: C. Hinchliff et al. Synthesis of Phylogeny and Taxonomy Into a Comprehensive Tree of Life. Proceedings of the National Academy of Sciences, 2015 DOI: 10.1073/pnas.1423041112

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