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Source Code for Biology and Medicine

, 2:7

First Online: 31 October 2007Received: 09 July 2007Accepted: 31 October 2007


BackgroundPhylogenetic trees are widely used to visualize evolutionary relationships between different organisms or samples of the same organism. There exists a variety of both free and commercial tree visualization software available, but limitations in these programs often require researchers to use multiple programs for analysis, annotation, and the production of publication-ready images.

ResultsWe present TreeViewJ, a Java tool for visualizing, editing and analyzing phylogenetic trees. The software allows researchers to color and change the width of branches that they wish to highlight, and add names to nodes. If collection dates are available for taxa, the software can map them onto a timeline, and sort the tree in ascending or descending date order.

ConclusionTreeViewJ is a tool for researchers to visualize, edit -decorate,- and produce publication-ready images of phylogenetic trees. It is open-source, and released under an GPL license, and available at

Electronic supplementary materialThe online version of this article doi:10.1186-1751-0473-2-7 contains supplementary material, which is available to authorized users.

Matthew W Peterson and Marc E Colosimo contributed equally to this work.

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Autor: Matthew W Peterson - Marc E Colosimo


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