On the etiology of the sterility of hybrids between certain strains of Drosophila paulistorum.
D000818:Animals; D003433:Crosses, Genetic; D004330:Drosophila; D005260:Female; D005298:Fertility; D006824:Hybridization, Genetic; D007248:Infertility, Male / Q000235:genetics*; D008297:Male