Distribution of recombination events as inferred from PMEN1 and CC180 genealogies.

<p>(A–C) Distribution of recombinations in PMEN1. (D–F) Distribution of recombinations in CC180. (<b>Left column</b>) Number of recombination events as a function of the branch length (years). The lengths were estimated by fitting a coalescent model of evolution to the heterochronously sampled sequences using BEAST. (<b>Middle column</b>) Frequency histogram of the size of the inferred recombination events. (<b>Right column</b>) Distribution chart of recombination event sizes: each vertical chart shows a distribution (histogram seen from above) of the recombination sizes for a given number of recombination events per tree branch. The goodness of fit of the four recombination models considered here is shown in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1004300#pgen-1004300-g003" target="_blank">Figures 3</a> and <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1004300#pgen-1004300-g004" target="_blank">4</a>.