articleSystematic BiologyMay 17, 2013HYBRID OA

Delimiting Species Using Single-Locus Data and the Generalized Mixed Yule Coalescent Approach: A Revised Method and Evaluation on Simulated Data Sets

TFTomochika FujisawaTGTimothy G. Barraclough

Natural History Museum · Imperial College London

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Abstract

DNA barcoding-type studies assemble single-locus data from large samples of individuals and species, and have provided new kinds of data for evolutionary surveys of diversity. An important goal of many such studies is to delimit evolutionarily significant species units, especially in biodiversity surveys from environmental DNA samples. The Generalized Mixed Yule Coalescent (GMYC) method is a likelihood method for delimiting species by fitting within-and between-species branching models to reconstructed gene trees. Although the method has been widely used, it has not previously been described in detail or evaluated fully against simulations of alternative scenarios of true patterns of population variation and…

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Topics & keywords

Topics
Keywords
  • Coalescent theory
  • Biology
  • Population
  • Divergence (linguistics)
  • Range (aeronautics)
  • Population size
  • Robustness (evolution)
  • Evolutionary biology
UN Sustainable Development Goals
  • Life in Land
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