Sequence diversity under the multispecies coalescent with Yule process and constant population size

Joseph Heled

Theoretical Population Biology, 2012, vol. 81, issue 2, 97-101

Abstract: The study of sequence diversity under phylogenetic models is now classic. Theoretical studies of diversity under the Kingman coalescent appeared shortly after the introduction of the coalescent. In this paper we revisit this topic under the multispecies coalescent, an extension of the single population model to multiple populations. We derive exact formulas for the sequence dissimilarity of two sequences drawn at random under a basic multispecies setup. The multispecies model uses three parameters—the species tree birth rate under the pure birth process (Yule), the species effective population size and the mutation rate. We also discuss the effects of relaxing some of the model assumptions.

Keywords: Sequence diversity; Kingman coalescent; Multi-species coalescent (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:thpobi:v:81:y:2012:i:2:p:97-101

DOI: 10.1016/j.tpb.2011.12.007

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