The amount of heterozygosis to be expected in an approximately pure line
- J. B. S. Haldane
- Journal of Genetics
The distribution of the genotypes in the successive generations on crossing two homozygous lines has been considered for populations where both selfing and natural crossing exist simultaneously. Different cases of selections that breeders use in the breeding programme have been discussed. The formulae are given by which the genotype frequencies in a given generation can be expressed in terms of those in the preceding generation. Selection will be greatly speeded up if the parents of the plants inbred for issue to the cultivators for improved output are tested suitably by crossing with the appropriate phenotypes in the manners discussed.