title: Heterochromatin distribution and chiasma localization in the grasshopper Btyodema tuberculata (Fabr.) (Acrididae).
mesh_terms: D000818:Animals; D002875:Chromosomes; D003434:Crossing Over, Genetic; D006110:Grasshoppers; D006570:Heterochromatin; D007621:Karyotyping; D008297:Male; D008540:Meiosis; D013194:Staining and Labeling; D013548:Sweden; D013737:Testis / Q000166:cytology
chemical_list: D006570:Heterochromatin