Mol Biol Evol.: auth.: C. Dessimoz

Mol Biol Evol. 2016 Apr 19. pii: msw080. [Epub ahead of print] Interactive Viewing and Comparison of Large Phylogenetic Trees on the Web.


Phylogenetic trees are pervasively used to depict evolutionary relationships. Increasingly, researchers need to visualize large trees and compare multiple large trees inferred for the same set of taxa (reflecting uncertainty in the tree inference or genuine discordance among the loci analyzed). Existing tree visualization tools are however not well suited to these tasks. In particular, side-by-side comparison of trees can prove challenging beyond a few dozen taxa. Here, we introduce, a web application to visualize and compare phylogenetic trees side-by-side. Its distinctive features are: highlighting of similarities and differences between two trees, automatic identification of the best matching rooting and leaf order, scalability to large trees, high usability, multiplatform support via standard HTML5 implementation, and possibility to store and share visualizations. The tool can be freely accessed at and can easily be embedded in other web servers. The code for the associated JavaScript library is available at under an MIT open source license.

© The Author 2016. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.


Phylogenetics; molecular evolution.; visualization; web services

PMID: 27189561