Statistical tests of models of DNA substitution
 Nick Goldman
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Penny et al. have written that “The most fundamental criterion for a scientific method is that the data must, in principle, be able to reject the model. Hardly any [phylogenetic] treereconstruction methods meet this simple requirement.” The ability to reject models is of such great importance because the results of all phylogenetic analyses depend on their underlying models—to have confidence in the inferences, it is necessary to have confidence in the models. In this paper, a test statistics suggested by Cox is employed to test the adequacy of some statistical models of DNA sequence evolution used in the phylogenetic inference method introduced by Felsentein. Monte Carlo simulations are used to assess significance levels. The resulting statistical tests provide an objective and very general assessment of all the components of a DNA substitution model; more specific versions of the test are devised to test individual components of a model. In all cases, the new analyses have the additional advantage that values of phylogenetic parameters do not have to be assumed in order to perform the tests.
 Title
 Statistical tests of models of DNA substitution
 Journal

Journal of Molecular Evolution
Volume 36, Issue 2 , pp 182198
 Cover Date
 19930201
 DOI
 10.1007/BF00166252
 Print ISSN
 00222844
 Online ISSN
 14321432
 Publisher
 SpringerVerlag
 Additional Links
 Topics
 Keywords

 Phylogenetic inference
 Maximum likelihood inference
 Evolutionary models
 Statistical testing
 Hypothesis testing
 Molecular clock
 Industry Sectors
 Authors

 Nick Goldman ^{(1)}
 Author Affiliations

 1. University Museum of Zoology, Department of Zoology, University of Cambridge, Downing Street, CB2 3EJ, Cambridge, UK