Daga, R.R., Thode, G., and Amores, A. (1996) Chromosome complement, C-banding, Ag-NOR and replication banding in the zebrafish Danio rerio. Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology. 4:29-32.
The chromosome complement of Danio rerio was investigated by Giemsa staining and C-banding, Ag-NORs and replication banding. The diploid number of this species is 2n = 50 and the arm number (NF) = 100. Constitutive heterochromatin was located at the centromeric position of all chromosome pairs. Nucleolus organizer regions appeared in the terminal position of the long arms of chromosomes 1, 2 and 8. Replication banding pattern allowed the identification of each chromosome pair.