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1 January 2005 EVOLUTION OF MIGRATION UNDER KIN SELECTION AND LOCAL ADAPTATION
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Abstract

We present here a stochastic two-locus, two-habitat model for the evolution of migration with local adaptation and kin selection. One locus determines the migration rate while the other causes local adaptation. We show that the opposing forces of kin competition and local adaptation can lead to the existence of one or two convergence stable migration rates, notably depending on the recombination rate between the two loci. We show that linkage between migration and local adaptation loci has two antagonist effects: when linkage is tight, cost of local adaptation increases, leading to smaller equilibrium migration rates. However, when linkage is tighter, the population structure at the migration locus tends to be very high because of the indirect selection, and thus equilibrium migration rates increases. This result, qualitatively different from results obtained with other models of migration evolution, indicates that ignoring drift or the detail of the genetic architecture may lead to incorrect conclusions.

Sylvain Billiard and Thomas Lenormand "EVOLUTION OF MIGRATION UNDER KIN SELECTION AND LOCAL ADAPTATION," Evolution 59(1), 13-23, (1 January 2005). https://doi.org/10.1554/04-232
Received: 9 April 2004; Accepted: 12 October 2004; Published: 1 January 2005
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