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Visualizing conflicting evolutionary hypotheses in large collections of trees: Using consensus networks to study the origins of Placentals and Hexapods

Citation

Holland, BR and Delsuc, F and Moulton, V, Visualizing conflicting evolutionary hypotheses in large collections of trees: Using consensus networks to study the origins of Placentals and Hexapods, Systematic Biology, 54, (1) pp. 66-76. ISSN 1063-5157 (2005) [Refereed Article]

DOI: doi:10.1080/10635150590906055

Abstract

Abstract.— Many phylogenetic methods produce large collections of trees as opposed to a single tree, which allows the exploration of support for various evolutionary hypotheses. However, to be useful, the information contained in large collections of trees should be summarized; frequently this is achieved by constructing a consensus tree. Consensus trees display only those signals that are present in a large proportion of the trees. However, by their very nature consensus trees require that any conflicts between the trees are necessarily disregarded.We present a method that extends the notion of consensus trees to allow the visualization of conflicting hypotheses in a consensus network. We demonstrate the utility of this method in highlighting differences amongst maximum likelihood bootstrap values and Bayesian posterior probabilities in the placental mammal phylogeny, and also in comparing the phylogenetic signal contained in amino acid versus nucleotide characters for hexapod monophyly. [Bayesian posterior probabilities; consensus trees; hexapods; median networks; nonparametric bootstrap; placental mammals; phylogenetic trees; quartet puzzling.]

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Biochemistry and Cell Biology
Research Field:Cellular Interactions (incl. Adhesion, Matrix, Cell Wall)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Biological Sciences
ID Code:71124
Year Published:2005
Web of Science® Times Cited:46
Deposited By:Mathematics and Physics
Deposited On:2011-07-08
Last Modified:2011-07-08
Downloads:0

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