Chalmers Conferences, 9th European Conference on Mathematical and Theoretical Biology

A multi-locus, haploid-selection, symmetric-viability model
Jeffrey Chasnov

Last modified: 2014-06-09



A multi-locus, haploid-selection, Levene model is studied.  By assuming symmetric selection coefficients, the model always admits a fully polymorphic symmetric equilibrium consisting equally of two types of purebreds, which may or may not be stable.  We will show how increasing recombination can act to either increase or decrease the genetic diversity of a population.  By generating more hybrid offspring from the mating of the two types of purebreds, recombination can act to increase genetic diversity provided the symmetric equilibrium remains stable.  But by destabiizing the symmetric equilibrium, recombination can ultimately act to favor one specific purebred over the other and decrease genetic diversity.