Send to

Choose Destination
Bioinformatics. 2001 Jul;17(7):664-8.

T-REX: reconstructing and visualizing phylogenetic trees and reticulation networks.

Author information

Département de Sciences Biologiques, Universitéde Montréal, CP 6128, succ. Centre-ville, Montréal, Québec H3C 3J7, Canada.


T-REX (tree and reticulogram reconstruction) is an application to reconstruct phylogenetic trees and reticulation networks from distance matrices. The application includes a number of tree fitting methods like NJ, UNJ or ADDTREE which have been very popular in phylogenetic analysis. At the same time, the software comprises several new methods of phylogenetic analysis such as: tree reconstruction using weights, tree inference from incomplete distance matrices or modeling a reticulation network for a collection of objects or species. T-REX also allows the user to visualize obtained tree or network structures using Hierarchical, Radial or Axial types of tree drawing and manipulate them interactively.


T-REX is a freeware package available online at:

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center