Population genetics: Coalescence theory II
نویسنده
چکیده
The coalescent is an accumulation of waiting times. We can think of it as standard queuing process where the times are exponentially distributed with rate k(k − 1)/(2 × 2N) [for most elaboration in this chapter I use the Wright-Fisher model as a guide, for the Moran model the rate would be k(k−1)/(2× (2N)2) ]. The coalescent makes no assumptions about the interaction of the intervals, we will assume that the intervals with k = n lineages is independent from the interval with k = n−1 lineages, and we further assume that the exponential distribution is a good approximation to the process (which it is), then we find that the variance of the time to the most recent common ancestor
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