Sex differences in gene expression for pupa weight in long term selected lines of Tribolium.
Full-sib matings in two populations of Tribolium which had been selected for increased pupa weight for more than 85 generations resulted in a significant inbreeding depression in male progeny but showed no effect in the female progeny. An analysis of variance of a population produced by backcrossing the selected populations to the inbred lines originally used to establish the select populations (Design-III) indicated some genes were still segregating which produce dominance effects in males but not in females. The data support the hypothesis that a class of genes exists, associated with the autosomes, that differ in their dominance effects of pupa weight in the two sexes.
D000818:Animals; D005260:Female; D005799:Genes, Dominant; D006823:Hybrid Vigor; D007178:Inbreeding; D008297:Male; D011110:Polymorphism, Genetic; D011679:Pupa / Q000254:growth & development; D012641:Selection, Genetic; D012737:Sex Factors; D014231:Tribolium / Q000254:growth & development