A two-locus model for polymorphism for sex-linked meiotic drive modifiers with possible applications to Aedes aegypti

Abstract A two-locus model is presented which shows the possibility of maintaining a polymorphism for modifiers of sex-linked meiotic drive in the absence of fitness differences. The model is very similar to the situation actually found in some laboratory strains of the mosquito Aedes aegypti . The existence of a stable polymorphism usually requires sufficiently loose linkage between the two loci.