coalface: a graphical user interface program for the simulation of coalescence



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    1. Molecular Ecology and Evolution Programme, Department of Genetics, University of Pretoria, Pretoria 0002, South Africa
      Wayne Delport, Fax: 27123625327; E-mail:
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Wayne Delport, Fax: 27123625327; E-mail:


In this manuscript, I describe a computer program that simulates the coalescent process and provides visual outputs of coalescent genealogies to the screen. coalface is a user-friendly program for teaching the principles of coalescence to both undergraduates and postgraduates in population genetics. In addition, coalface can generate data for distributions of the time to the most recent common ancestor, number of segregating sites and common diversity indices, from multiple simulations. Windows and Linux (Intel) executables are available at