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- Multispecies Coalescent Process is a stochastic process model that describes the genealogical relationships for a sample of DNA sequences taken from several species. It represents the application of coalescent theory to the case of multiple species. The multispecies coalescent results in cases where the relationships among species for an individual gene (the gene tree) can differ from the broader history of the species (the species tree). It has important implications for the theory and practice of phylogenetics and for understanding genome evolution. A gene tree is a binary graph that describes the evolutionary relationships between a sample of sequences for a non-recombining locus. A species tree describes the evolutionary relationships between a set of species, assuming tree-like evolution. However, several processes can lead to discordance between gene trees and species trees. The Multispecies Coalescent model provides a framework for inferring species phylogenies while accounting for ancestral polymorphism and gene tree-species tree conflict. The process is also called the Censored Coalescent. Besides species tree estimation, the multispecies coalescent model also provides a framework for using genomic data to address a number of biological problems, such as estimation of species divergence times, population sizes of ancestral species, species delimitation, and inference of cross-species gene flow. (en)
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- 42547 (xsd:nonNegativeInteger)
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- Multispecies Coalescent Process is a stochastic process model that describes the genealogical relationships for a sample of DNA sequences taken from several species. It represents the application of coalescent theory to the case of multiple species. The multispecies coalescent results in cases where the relationships among species for an individual gene (the gene tree) can differ from the broader history of the species (the species tree). It has important implications for the theory and practice of phylogenetics and for understanding genome evolution. (en)
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- Multispecies coalescent process (en)
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