The American Naturalist · 1955 · 11 citations · 0 references
Life SciencesBiologyGeneticsComparative GeneticsQuantitative GeneticsReproductive GeneticsAnimal GeneticsMammalian GeneticsMammalian ReproductionNatural SelectionRodent GeneticsRodent ReproductionComparative Genotype EvaluationHeterozygote AdvantageHeterozygote DisadvantageInbred Strain GeneticsInbreeding GeneticsWild Population Selection
The relative fertilities of two genotypes of mice from a wild population have been compared by breeding them in the laboratory to a standard inbred stock. Males heterozygous for a lethal (+/tw) appear in a preliminary test to be superior to those without the mutant allele (+/+). The hypothesis of heterozygote superiority is being tested further.