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QNet   Downloaded: 0   Viewed: 0
Developed By: Group of Phylogenetic Combinatorics


QNet is a software package written in Java which encompasses methods for generating phylogenetic networks from quartet data, as per the method described in [1].

The method takes as input the set of all quartet tree topologies for a given data set, together with a branch length for each topology. These branch lengths must be precomputed by the user.

Included in the package are two simple applications for generating quartet weight data. GWeight utilizes statistical geometry [2] to generate quartet weights. LengthWeighter is a front-end for the Tree-Puzzle software [3] for generating likelihood quartet weights.

Using the quartet data, QNet employs an agglomerative approach to construct a planar split network, that summarises the relations described by the quartets.The resulting networks are output in Nexus format for easy visualization using the SplitsTree software package [4].

The Filterer application may be used to reduce the complexity of networks for ease of visualizing and interpretation of results

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QNet is developed and maintained by CAS-MPG Partner Institute for Computational Biology(PICB) ,Chinese Academy of Sciences. The software is only free of charge for non-commercial users.


Mol Biol Evol, 2007 (www.ncbi.nlm.nih.gov/pubmed/17119010)

    Contact Information:  

If you have any feedback or question concerning the tools you can further click the Project Website , or please feel free to contact us at stefanpicb.ac.cn.