Nucleolus-organizer regions and heterochromatin in three species of Bovidae
Copyright policy )Nucleolus-organizer regions and heterochromatin in three species of Bovidae
Ag-NOR staining and a counterstain-enhanced fluorescence technique (chromomycin A3/distamycin A/DAPI staining = CDD-method) have been applied to ibex (Capra ibex L.), chamois (Rupicapra rupicapra L.) and bison (Bison bison L.) chromosomes. Chromomycin A3 visualization led to a well defined R-banding pattern along the chromosome arms and to a clear demonstration of centric heterochromatic bands of variable size. The nucleolus organizer regions (NORs) were found in the telomeric regions of the chromosomes 2, 3, 4, 5 and 28 of the ibex, of the chromosomes 1/3 (short arm), 2, 4, 5 and 28 of the chamois and of the chromosomes 2, 3, 4, 11 and 28 of the bison.
Male, Polymorphism, Genetic, Species Specificity, Heterochromatin, Karyotyping, Nucleolus Organizer Region, Animals, Female, Ruminants, Chromosome Banding
Male, Polymorphism, Genetic, Species Specificity, Heterochromatin, Karyotyping, Nucleolus Organizer Region, Animals, Female, Ruminants, Chromosome Banding
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