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Visualizing conflicting evolutionary hypotheses in large collections of trees: Using consensus networks to study the origins of Placentals and Hexapods
journal contribution
posted on 2023-05-17, 06:47 authored by Barbara HollandBarbara Holland, Delsuc, F, Moulton, VAbstract.— 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.]
History
Publication title
Systematic BiologyVolume
54Pagination
66-76ISSN
1063-5157Department/School
School of Natural SciencesPublisher
Taylor & Francis IncPlace of publication
325 Chestnut St, Suite 800, Philadelphia, USA, Pa, 19106Repository Status
- Restricted