The number of equilibria in the diallelic Levene model with multiple demes

3Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

The Levene model is the simplest mathematical model to describe the evolution of gene frequencies in spatially subdivided populations. It provides insight into how locally varying selection promotes a population's genetic diversity. Despite its simplicity, interesting problems have remained unsolved even in the diallelic case.In this paper we answer an open problem by establishing that for two alleles at one locus and J demes, up to 2J-1 polymorphic equilibria may coexist. We first present a proof for the case of stable monomorphisms and then show that the result also holds for protected alleles. These findings allow us to prove that any odd number (up to 2J-1) of equilibria is possible, before we extend the proof to even numbers. We conclude with some numerical results and show that for J>2, the proportion of parameter space affording this maximum is extremely small. © 2010 Elsevier Inc.

Cite

CITATION STYLE

APA

Novak, S. (2011). The number of equilibria in the diallelic Levene model with multiple demes. Theoretical Population Biology, 79(3), 97–101. https://doi.org/10.1016/j.tpb.2010.12.002

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free