An eco-evolutionary approach of adaptation and recombination in a large population of varying size

Charline Smadi

Stochastic Processes and their Applications, 2015, vol. 125, issue 5, 2054-2095

Abstract: We identify the genetic signature of a selective sweep in a population described by a birth-and-death process with density dependent competition. We study the limit behavior for large K, where K scales the population size. We focus on two loci: one under selection and one neutral. We distinguish a soft sweep occurring after an environmental change, from a hard sweep occurring after a mutation, and express the neutral proportion variation as a function of the ecological parameters, recombination probability rK, and K. We show that for a hard sweep, two recombination regimes appear according to the order of rKlogK.

Keywords: Birth and death process; Coalescent; Coupling; Eco-evolution; Genetic hitch-hiking; Selective sweep (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:spapps:v:125:y:2015:i:5:p:2054-2095

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DOI: 10.1016/j.spa.2014.12.007

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