Effective population size in the coalescent model

• The coalescent model of effective population size.

• Coalescent genealogies and population bottlenecks.

• Coalescent genealogies in growing and shrinking populations.

This section will explore the meaning of effective population size in the coalescent model. As in the models of genetic drift developed previously in this chapter, effective population size also plays a critical role in coalescence models. In the context of the coalescent model, the effective population size determines the chance that two gene copies descend from the same ancestor when working back in time from the present to the past.

In the coalescent model, two randomly sampled

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