title: Distribution of heterochromatin in the chromosomes of Haplopappus gracilis.
mesh_terms: D001345:Autoradiography; D002869:Chromosome Aberrations; D002875:Chromosomes / Q000378:metabolism*; D003080:Cold Temperature; D004261:DNA Replication; D006652:Histological Techniques; D010944:Plants; D011804:Quinolines / Q000494:pharmacology
chemical_list: D011804:Quinolines