Genetic Differentiation of Multigene Families

Abstract

Let us consider a situation where a population was split into two identical ones and the two populations have been isolated thereafter. Let N_e be the effective population size of both new and original populations, i. e. the original population has doubled to give the two daughter populations. I shall here apply the simple model of double diffusion. Let us assume that the population and gene family size remain unchanged for a long period, so that genetic variations contained in the families of one population fluctuate only with the statistically predictable latitude, whereas the gene families differentiate with time between the two populations.