title: Genetic analysis of hybrid sterility within the species Drosophila pseudoobscura.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D002875:Chromosomes; D003105:Colombia; D003434:Crossing Over, Genetic; D003593:Cytoplasm; D004330:Drosophila; D005260:Female; D005298:Fertility; D005787:Gene Frequency; D005799:Genes, Dominant; D005808:Genes, Recessive; D005854:Germ Cells / Q000166:cytology; D006824:Hybridization, Genetic; D007248:Infertility, Male / Q000235:genetics*; D007621:Karyotyping; D008297:Male; D009154:Mutation; D012730:Sex Chromosomes