Show simple item record Wright, April M. Lloyd, Graeme T. Hillis, David M. 2015-12-17T16:00:55Z 2015-12-17T16:00:55Z 2015-12-28
dc.identifier doi:10.5061/dryad.sb8h1
dc.identifier.citation Wright AM, Lloyd GT, Hillis DM (2015) Modeling character change heterogeneity in phylogenetic analyses of morphology through the use of priors. Systematic Biology 65(4): 602-611.
dc.description The Mk model was developed for estimating phylogenetic trees from discrete morphological data, whether for living or fossil taxa. Like any model, the Mk model makes a number of assumptions. One assumption is that transitions between character states are symmetric (i.e., the probability of changing from 0 to 1 is the same as 1 to 0). However, some characters in a data matrix may not satisfy this assumption. Here, we test methods for relaxing this assumption in a Bayesian context. Using empirical datasets, we perform model fitting to illustrate cases in which modeling asymmetric transition rates among characters is preferable to the standard Mk model. We use simulated datasets to demonstrate that choosing the best-fit model of transition-state symmetry can improve model fit and phylogenetic estimation.
dc.relation.haspart doi:10.5061/dryad.sb8h1/6
dc.relation.haspart doi:10.5061/dryad.sb8h1/1
dc.relation.haspart doi:10.5061/dryad.sb8h1/2
dc.relation.haspart doi:10.5061/dryad.sb8h1/3
dc.relation.haspart doi:10.5061/dryad.sb8h1/5
dc.relation.haspart doi:10.5061/dryad.sb8h1/7
dc.relation.isreferencedby doi:10.1093/sysbio/syv122
dc.relation.isreferencedby PMID:26715586
dc.subject phylogeny
dc.subject morphology
dc.subject Bayesian estimation
dc.subject priors
dc.subject paleontology
dc.title Data from: Modeling character change heterogeneity in phylogenetic analyses of morphology through the use of priors
dc.type Article
prism.publicationName Systematic Biology
dryad.dansTransferDate 2018-04-26T00:43:32.256+0000
dryad.dansArchiveDate 2018-04-26T13:52:38.025+0000

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Description Explains the content of various files.
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Title EmpiricalData
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Description Raw empirical data, and the results of estimating phylogenetic trees from these data using MrBayes.
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Title Simulations
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Description Simulated data files, and the results of phylogenetic estimation from these data.
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Title MrBayesBlocks
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Description MrBayes instruction sets for each prior.
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Title Spreadsheets
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Title Scripts
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Description Scripts used for data generation and analysis.
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