Chromosome complement, C-banding, Ag-NOR and replication banding in the zebrafish Danio rerio

Chromosome Res. 1996 Jan;4(1):29-32. doi: 10.1007/BF02254941.


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.

MeSH terms

  • Animals
  • Azure Stains
  • Chromosome Banding / methods*
  • Chromosomes
  • Female
  • Karyotyping
  • Nucleolus Organizer Region
  • Ploidies
  • Silver Staining
  • Zebrafish / genetics*


  • Azure Stains