Chromosomal polymorphism of Rattus rattus (Linnaeus, 1758) (rodentia: muridae) in Central Anatolia

Folia Biol (Krakow). 2011;59(1-2):31-4. doi: 10.3409/fb59_1-2.31-34.


In this study, conventionally stained, C- and Ag-NOR banded karyotypes of Rattus rattus from Central Anatolia are presented. The karyotype of the specimens from Ankara and (Cankiri provinces consist of 2n = 38, NF = 60 and NFa = 58 while the karyotype of Kirikkale specimens consist of 2n = 38 and NFa = 59 due to a heteromorphic autosome pair. The X is a large to medium sized acrocentric and the Y chromosome is a small acrocentric in all examined specimens. Constitutive heterochromatin is located in the centromeric regions of all pairs of autosomes and the X chromosome. Nucleolar organizer regions (NORs) are located only in 3 autosome pairs.

MeSH terms

  • Animals
  • Karyotyping*
  • Polymorphism, Genetic*
  • Rats / genetics*
  • Turkey