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Title

 

 

 

 

New measures of topological stability in phylogenetic trees – Taking taxon composition into account

 

Authors

Dirk Krüger 1 ,2,*, Andrea Gargas 1

 

Affiliation

1University of Wisconsin, Botany Department, 430 Lincoln Drive, Madison, WI 53706, USA, 2 Current Address: University of Wisconsin, Department of Soil Science, 1525 Observatory Drive, Madison, WI 53706, USA

 

Email

dirkkrueger@wisc.edu; * Corresponding author

 

Article Type

Prediction Model

 

Date

received December 27, 2006; accepted December 28, 2006; published online December 28, 2006

 

Abstract

In phylogenetic trees the addition and removal of taxa has large effects on tree topology, hence measures of branch support and tree stability should account for taxonomic composition. Currently no comprehensive system of composition-dependent parameters exists in any cladistic or phenetic strategy. We introduce several values and indices based on a modification of the original jackknife resampling. Their advantage is a complete evaluation and optimization of taxon composition in phylogenetic data. While related to the Jackknife Monophyly Index (JMI), our system of support measures expands beyond parsimony analyses, and includes indices estimating support for the entire phylogenetic tree based on individual branch supports.

 

Keywords

 

phylogeny; tree topology; taxon composition; jackknife

Citation

Krüger and Gargas, Bioinformation 1(8): 327-330 (2006)

 

Edited by

P. Kangueane

 

ISSN

0973-2063

 

Publisher

Biomedical Informatics

License

This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.