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Theor Popul Biol. 1999 Jun;55(3):297-308.

Genetic differentiation in populations with different classes of individuals.

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Laboratoire Génétique et Environnement, Institut des Sciences de l'Evolution, Université de Montpellier II, Montpellier, 34095, France.


I formulate and analyse a model of population structure with different classes of individuals. These different classes may be age classes, other demographic classes, or different types of habitats homogeneously distributed over a geographical area. The value of population differentiation under an island model of dispersal and the increase of differentiation with geographical distance in one- and two-dimensional "isolation by distance" models are then obtained for a generalization of the FST measure of population structure, as a function of "effective" mutation, migration, and population size parameters. The relevant effective subpopulation size is related to the "mutation effective population size" of a single isolated subpopulation and, in models of age-structured populations, to the inbreeding effective population size.

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