Isolation-by-Distance and Outbreeding Depression Are Sufficient to Drive Parapatric Speciation in the Absence of Environmental Influences
Figure 6
Virtual Genomics and Sexual Reproduction.
Individuals are diploid hermaphrodites, in which haploid genomes consist of n = 2 chromosomes containing l = 200 nucleotide bases A, C, G, and T (only l = 8 bases per chromosome shown in this diagram). Each parent produces a haploid gamete by randomly selecting one of the chromosomes from each diploid pair (blue portions of the parent). When producing a gamete, some random point mutations may also occur with a low probability μ per site. One such mutation, from base C to base A, is depicted in red.