Abstract
As discussed in Chapter 1, systems of nonrandom mating may depend on relatedness (inbreeding) or phenotype (assortative or disassortative mating). In the former case, the effect is the same on all loci; in the absence of selection, gene frequencies are conserved. Assortation or disassortation may be directly for the trait under investigation or for a character correlated with it due to common genetic or environmental factors. The effect on each locus, if any, depends on the genetic determination of the phenotype. In linkage equilibrium, loci not influencing the trait are unaffected. Since some genotypes may be more likely to mate than others, gene frequencies may change even if all matings have the same fertility and all genotypes are equally viable. Inbreeding increases homozygosity and genetic I variability; to the extent that genotype and phenotype are correlated, assortative mating will have similar effects.KeywordsGene FrequencyAssortative MatingLinear Fractional TransformationNonrandom MatingUltimate RateThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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