title: [Presence of abundant heterochromatin in the karyotype of Cebus: C. cappucinus and C. nigrivittatus].
abstract: The karyotypes of Cebus capucinus and C. nigrivittatus (Primates, Platyrrhini) are compared after applying several banding techniques. The chromosomes have abundant intercallary heterochromatin which can be stained by R-, T- and C-band techniques and which are late replicating. The X chromosome resembles that of man and of numerous primates. However, the late replicating pattern of the X in female lymphocytes resembles that of the late replicating X of human fibroblasts rather than of human lymphocytes. Banding patterns of certain chromosomes appear analogous in Cebus and Cattarhini, including Man.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000032:analysis*; D004261:DNA Replication; D005260:Female; D005347:Fibroblasts / Q000166:cytology; D000882:Haplorhini / Q000235:genetics*; D006570:Heterochromatin / Q000032:analysis*; D006801:Humans; D008214:Lymphocytes / Q000166:cytology; D014960:X Chromosome
chemical_list: D006570:Heterochromatin
vernacular_title: Présence d'une hétérochromatine abondante dans le caryotype de deux Cebus: C. capucinus et C. nigrivittatus.