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Nucleolus-organizer regions and heterochromatin in three species of Bovidae

โœ Scribed by B. Mayr; E. Tesarik; H. Auer; H. Burger

Publisher
Springer Netherlands
Year
1987
Tongue
English
Weight
424 KB
Volume
75
Category
Article
ISSN
0016-6707

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โœฆ Synopsis

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.

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