oa African Zoology - The karyotype and taxonomic status of Cryptomys hottentotus darlingi (Rodentia: Bathyergidae)

Volume 28, Issue 4
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



Cytogenetic analyses were performed on twenty specimens referable to Cryptomys hottentotus darlingi from north eastern Zimbabwe. In comparison to the southern subspecies C. h, hottentotus (aFN = 102) and C. h, natalensis (aFN = 100), C. h. darlingi showed the same diploid number (2n = 54), but a striking reduction in the fundamental number (aFN = 80). C-banding analysis suggests that chromosome differentiation arose most probably by pericentric inversions. The magnitude of the karyotypic differences is assumed to represent reproductive isolation and consequently the specific status for the darlingi cytotype is recommended.

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