© 2006 Society of Systematic Biologists
Discriminating Supported and Unsupported Relationships in Supertrees Using Triplets
Edited by Mike Steel: Associate Editor
1 Department of Zoology, The Natural History Museum Cromwell Road, London, SW7 5BD, UK; E-mail: james.cotton@nhm.ac.uk (J.A.C.)
2 Department of Earth Sciences, University of Cambridge Downing Street, Cambridge, CB2 3EQ, UK
Received June 13, 2005; Revised August 9, 2005; Accepted September 28, 2005
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A supertree is a phylogeny formed by combining information from disparate phylogenetic trees. Supertree methods have been particularly used for constructing large phylogenies from previously published trees and there is a growing literature using supertree methods for phylogenetic inference in macroevolutionary studies (e.g., Davies et al., 2004; Grotkopp et al., 2004; Salamin and Davies, 2004). This empirical supertree work has mostly used matrix representation with parsimony (standard MRP; (standard MRP; Baum, 1992; Ragan, 1992) in which optimal supertrees are found by parsimony analysis of a matrix encoding the full splits of the input trees. A major concern with standard MRP (and some other) supertrees is that they can display relationships that seem to lack evidential support from the input trees, either individually or jointly (Bininda-Emonds and Bryant, 1998; Pisani and Wilkinson, 2002; Wilkinson et al., 2004b). This has prompted the development
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Triplet Support |
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A Closure Operation and Combined Support |
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Measures of Triplet Support |
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Inferring Triplet Supertrees |
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The Meaning of "Supported" Relationships |
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