Variation of metric traits under subdivision and inbreeding.

TLDR: A simple derivation of these population parameters in the case of complete additivity of gene effects is presented, and a finer resolution of the effects of subdivision and inbreeding on variances is given.

Abstract: WRIGHT (1969) reviewed the joint effects of subdivision and inbreeding on the mean and variance of quantitative traits of Mendelian populations. In this paper a simple derivation of these population parameters in the case of complete additivity of gene effects is presented, and a finer resolution of the effects of subdivision and inbreeding on variances is given. In a population subdivided into isolates, the genotypic structure of the population depends also on the covariances between inbreeding levels and gene frequencies (Barrai, 1971; see also Nei, 1965) so that the array describing the relation between genotype frequencies and a completely additive gene effect might be as in table 1.