A convergence theorem for markov chains arising in population genetics and the coalescent with selfing

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A simple convergence theorem for sequences of Markov chains is presented in order to derive new ‘convergence-to-the-coalescent’ results for diploid neutral population models. For the so-called diploid Wright-Fisher model with selfing probability s and mutation rate θ, it is shown that the ancestral structure of n sampled genes can be treated in the framework of an n -coalescent with mutation rate ̃θ := θ(1- s /2), if the population size N is large and if the time is measured in units of (2- s ) N generations.