The current tree was retrieved from the Open Tree of Life web server. It displays synthetic tree version 7.0, based on ott (open tree taxonomy) version 2.10 draft 11. It contains a total of 2,146,904 species: 4,545 Archaea, 323,712 Bacteria and 1,818,647 Eukaryotes.
All the nodes in the tree are clickable. It displays information (description and picture) concerning the taxa (retrieved from the ikipedia page, if any). It also gives the number of descendant of each node and a link to the same clade or species on other databases. When no source is available, this means that the clade/partition is absent in other taxonomies.
Itineraries between taxa can be computed by clicking on the icon on the left of the search field. When filling the two new search fields, the route is drawn between the taxa and the Most Recent Common Ancestor (MRCA) of the two groups/species is returned. The user gets also access to a list of all the nodes that are encountered in the way from one group to the other. This list is clickable.
Three versions of Lifemap currently exist: the one you are currently browsing (Lifemap-otol), a version based on the NCBI taxonomy, lifemap-ncbi, and finally a version that is simplified to only display well annotated species. Go to http://lifemap.univ-lyon1.fr to choose the version you want to browse.
Lifemap was written by Damien M. de Vienne (web page), a CNRS researcher working in the Laboratory of Biometry and Evolutionary Biology (LBBE) in Lyon (France) with support from the informatics departement (especially Stephane Delmotte and Bruno Spataro).