Expected pairwise congruence among gene trees under the coalescent model
نویسندگان
چکیده
منابع مشابه
BEST: Bayesian estimation of species trees under the coalescent model
UNLABELLED BEST implements a Bayesian hierarchical model to jointly estimate gene trees and the species tree from multilocus sequences. It provides a new option for estimating species phylogenies within the popular Bayesian phylogenetic program MrBayes. The technique of simulated annealing is adopted along with Metropolis coupling as performed in MrBayes to improve the convergence rate of the M...
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Gene trees are evolutionary trees representing the ancestry of genes sampled from multiple populations. Species trees represent populations of individuals-each with many genes-splitting into new populations or species. The coalescent process, which models ancestry of gene copies within populations, is often used to model the probability distribution of gene trees given a fixed species tree. Thi...
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Under the coalescent model for population divergence, lineage sorting can cause considerable variability in gene trees generated from any given species tree. In this paper, we derive a method for computing the distribution of gene tree topologies given a bifurcating species tree for trees with an arbitrary number of taxa in the case that there is one gene sampled per species. Applications for g...
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Given a gene tree and a species tree, a coalescent history is a list of the branches of the species tree on which coalescences in the gene tree take place. Each pair consisting of a gene tree topology and a species tree topology has some number of possible coalescent histories. Here we show that, for each n>or=7, there exist a species tree topology S and a gene tree topology G not equalS, both ...
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ژورنال
عنوان ژورنال: Molecular Phylogenetics and Evolution
سال: 2017
ISSN: 1055-7903
DOI: 10.1016/j.ympev.2016.09.023