Parsimony and maximum-likelihood phylogenetic analyses of morphology do not generally integrate uncertainty in inferring evolutionary history: a response to Brown et al.
Our recent study evaluated the performance of parsimony and probabilistic models of phylogenetic inference based on categorical data [1]. We found that a Bayesian implementation of a probabilistic Markov model produced more accurate results than either of the competing parsimony approaches (the main method currently employed), and the maximum-likelihood implementation of the same model. This occurs principally because the results of Bayesian analyses are less resolved (less precise) as a measure of topological uncertainty is intrinsically recovered in this MCMC-based approach and can be used to construct a majority-rule consensus tree that reflects this. Of the three main methods, maximum likelihood performed theworst of all as a single exclusively bifurcating tree is estimated in this framework which does not integrate an intrinsic measure of support.
Main Authors: | , , , , , , , , , , , |
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Format: | artículo biblioteca |
Language: | English |
Published: |
Royal Society (Great Britain)
2017-10-11
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Subjects: | Taxonomy and systematics, Evolution, Palaeontology, |
Online Access: | http://hdl.handle.net/10261/217174 |
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Summary: | Our recent study evaluated the performance of parsimony and probabilistic
models of phylogenetic inference based on categorical data [1]. We found that a
Bayesian implementation of a probabilistic Markov model produced more accurate
results than either of the competing parsimony approaches (the main method currently employed), and the maximum-likelihood implementation of the same
model. This occurs principally because the results of Bayesian analyses are less
resolved (less precise) as a measure of topological uncertainty is intrinsically recovered in this MCMC-based approach and can be used to construct a majority-rule
consensus tree that reflects this. Of the three main methods, maximum likelihood
performed theworst of all as a single exclusively bifurcating tree is estimated in this
framework which does not integrate an intrinsic measure of support. |
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