Relationship between the Reproductive Capability of a Subdivided Population and Its Genetic Structure: Computer Simulation,the Simplest Multilocus Model

An original computer model, simulating joint genetic and demographic dynamics of subdivided populations, is proposed. The model accounts for the reverse effect of the genetic structure on the reproductive capability of a population, which is based on a postulated limited set of biallelic loci, controlling variation in an adaptive quantitative trait. The model allows to simulate spreading of the population, originating from a single small colony, resulting in establishment of involves genetic and demographic equilibrium (a normal population-genetic process) and reorganization of the genetic structure of the subdivided population under anthropogenic pressure, associated with a decrease in its reproductive capability (an adverse population-genetic process).