title: Localization of constitutive heterochromatin in the chromosomes of Drosophila virilis.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000032:analysis*; D004330:Drosophila / Q000648:ultrastructure*; D006570:Heterochromatin / Q000032:analysis*; D012730:Sex Chromosomes / Q000032:analysis
chemical_list: D006570:Heterochromatin