Summary
In the absence of differential selection the phenotypic distributions of the pure-breeding lines extractable from an F1 hybrid are identical irrespective of whether they are derived by dihaploidy or single seed descent. This identity is not affected by the kinds of gene action, genie interaction and genotype × environment interaction contributing to the phenotypic differences. Linkage disequilibrium alone produces a difference between them and this can be minimised by delaying the extraction of the dihaploids until the F2 or F3 generations. The genetic components of the means, variances, skewnesses and kurtoses of these phenotypic distributions can be estimated from the early generations of a cross.
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Jinks, J., Pooni, H. Properties of pure-breeding lines produced by dihaploidy, single seed descent and pedigree breeding. Heredity 46, 391–395 (1981). https://doi.org/10.1038/hdy.1981.47
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DOI: https://doi.org/10.1038/hdy.1981.47
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