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QNet: an agglomerative method for the construction of phylogenetic networks from weighted quartets

Item Type:Article
Title:QNet: an agglomerative method for the construction of phylogenetic networks from weighted quartets
Creators Name:Grünewald, S. and Forslund, K. and Dress, A. and Moulton, V.
Abstract:We present QNet, a method for constructing split networks from weighted quartet trees. QNet can be viewed as a quartet analogue of the distance-based Neighbor-Net (NNet) method for network construction. Just as NNet, QNet works by agglomeratively computing a collection of circular weighted splits of the taxa set which is subsequently represented by a planar split network. To illustrate the applicability of QNet, we apply it to a previously published Salmonella data set. We conclude that QNet can provide a useful alternative to NNet if distance data are not available or a character-based approach is preferred. Moreover, it can be used as an aid for determining when a quartet-based tree-building method may or may not be appropriate for a given data set. QNet is freely available for download.
Keywords:Phylogenetic Tree, Phylogenetic Network, Split Network, Neighbour-Net, Splits Tree, Quartet
Source:Molecular Biology and Evolution
ISSN:0737-4038
Publisher:Oxford University Press (U.K.)
Volume:24
Number:2
Page Range:532-538
Date:1 February 2007
Official Publication:https://doi.org/10.1093/molbev/msl180
PubMed:View item in PubMed

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