Evaluation of a Bayesian Coalescent Method of Species Delimitation
نویسندگان
چکیده
منابع مشابه
Evaluation of a bayesian coalescent method of species delimitation.
A Bayesian coalescent-based method has recently been proposed to delimit species using multilocus genetic sequence data. Posterior probabilities of different species delimitation models are calculated using reversible-jump Markov chain Monte Carlo algorithms. The method accounts for species phylogenies and coalescent events in both extant and extinct species and accommodates lineage sorting and...
متن کاملDISSECT: an assignment-free Bayesian discovery method for species delimitation under the multispecies coalescent
MOTIVATION The multispecies coalescent model provides a formal framework for the assignment of individual organisms to species, where the species are modeled as the branches of the sp tree. None of the available approaches so far have simultaneously co-estimated all the relevant parameters in the model, without restricting the parameter space by requiring a guide tree and/or prior assignment of...
متن کاملSTACEY: species delimitation and phylogeny estimation under the multispecies coalescent
This article describes a new package called STACEY for BEAST2 which is capable of both species delimitation and species tree estimation using DNA sequences from multiple loci. The focus in this article is on species delimitation. STACEY is based on the multispecies coalescent model, and builds on earlier software (DISSECT), which uses a ‘birth-death-collapse’ prior to deal with delimitations wi...
متن کاملCoalescent-based species delimitation in an integrative taxonomy.
The statistical rigor of species delimitation has increased dramatically over the past decade. Coalescent theory provides powerful models for population genetic inference, and is now increasingly important in phylogenetics and speciation research. By applying probabilistic models, coalescent-based species delimitation provides clear and objective testing of alternative hypotheses of evolutionar...
متن کاملBayesian species delimitation using multilocus sequence data.
In the absence of recent admixture between species, bipartitions of individuals in gene trees that are shared across loci can potentially be used to infer the presence of two or more species. This approach to species delimitation via molecular sequence data has been constrained by the fact that genealogies for individual loci are often poorly resolved and that ancestral lineage sorting, hybridi...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2011
ISSN: 1076-836X,1063-5157
DOI: 10.1093/sysbio/syr071