Advertisement

Karyotype of the rare Johnston’s genetGenetta johnstoni (Viverridae) and a reassessment of chromosomal characterization among congeneric species

  • 42 Accesses

  • 5 Citations

Abstract

We present herein new data on karyotypes of members of the genusGenetta. G- and C-banded chromosomes of the Johnston’s genetGenetta johnstoni Pocock, 1908 (2n = 50 / FNa = 92) are described for the first time, and compared with those ofG. genetta (2n = 54 / FNa = 92). In addition, the standard karyotype ofG. maculata (2n = 52 / FNa = 96) was studied. A reassessment of taxonomic attribution of previously published material allowed us to characterize (2n, FNa, and chromosome morphology) the karyotypes of three genets, previously unknown (G. pardina, G. letabae andG. tigrina). Our results show that despite a rather low interspecific variability in 2n and FNa, all the species of genets (exceptG. pardina andG. maculata) appear differentiated when chromosomal morphology is taken into account. Although chromosomal banding data are limited, confrontation of G-band karyotypes with preliminary molecular phylogenetic results reveals that karyotypic evolution within the genusGenetta might involve various rearrangements like Robertsonian and tandem translocations, pericentric inversions, and centromere fissions; thus providing at least for some taxa a solid postzygotic isolation. Finally, our study suggests that cytogenetic analyses might constitute a useful tool for questioning interspecific boundaries, especially within the taxonomically debated complex of large-spotted genets.

This is a preview of subscription content, log in to check access.

References

  1. Coetzee C. G. 1977. Order Carnivora. Part 8. [In: 1971–1977. The mammals of Africa: an identification manual. J. Meester and H. W. Setzer, eds]. Smithsonian Institution Press, Washington DC.

  2. Couturier J. and Dutrillaux B. 1986. Evolution chromosomique chez les Carnivores. Mammalia 50 (no. spécial): 124–162.

  3. Crawford-Cabral J. 1981. The classification of the genets (Carnivora, Viverridae, genusGenetta). Boletim da Sociedade Portuguesa de Ciências Naturais 20: 97–114.

  4. Crawford-Cabral J. and Fernandes C. A. 1999. A comment on the nomenclature of the Rusty-spotted genet. Small Carnivore Conservation 21: 12.

  5. Crawford-Cabral J. and Fernandes C. A. 2001. The Rusty-spotted genets as a group with three species in Southern Africa (Carnivora: Viverridae). [In: African small mammals. C. Denys, L. Granjon and A. Poulet, eds]. Institut de Recherche pour le Développement, Paris: 65–80.

  6. Crawford-Cabral J. and Pacheco A. 1992. Are the Large-spotted and the Rusty-spotted genets separate species (Carnivora, Viverridae, genusGenetta). Garcia de Orta, Séria de Zoologia 16: 7–17.

  7. Ford C. E. and Hamerton J. L. 1956. A colchicine, hypotonic citrate, squash sequence for mammalian chromosomes. Stain Technology 31: 247–251.

  8. Gaubert P. 2003. Description of a new species of genet (Carnivora; Viverridae; genusGenetta) and taxonomic revision of forest forms related to the Large-spotted Genet complex. Mammalia 67: 85–108.

  9. Gaubert P., Veron G. and Tranier M. 2001. An investigation of morpho-anatomical characters within the genusGenetta (Carnivora, Viverridae), with a remark onOsbornictis, the aquatic genet. [In: African small mammals. C. Denys, L. Granjon and A. Poulet, eds]. IRD, Paris: 81–89.

  10. Gaubert P., Veron G. and Tranier M. 2002a. Genets and “genet-like” taxa (Carnivora, Viverrinae): phylogenetic analysis, systematics and biogeographic implications. Zoological Journal of the Linnean Society 134: 317–334.

  11. Gaubert P., Veron G., Colyn M., Dunham A., Shultz S. and Tranier M. 2002b. A reassessment of the distributional range of the rareGenetta johnstoni (Viverridae, Carnivora), with some newly discovered specimens. Mammal Review 32: 132–144.

  12. Gaubert P., Tranier M., Veron G., Kock D., Dunham A. E., Taylor P. J., Stuart C., Stuart T. and Wozencraft W. C. 2003a. Case 3204. Viverra maculata Gray, 1830 (currentlyGenetta maculata; Mammalia, Carnivora): proposed conservation of the specific name. Bulletin of Zoological Nomenclature 60: 45–47.

  13. Gaubert P., Tranier M., Veron G., Kock D., Dunham A. E., Taylor P. J., Stuart C., Stuart T. and Wozencraft W. C. 2003b. Nomenclatural comments on the Rusty-spotted Genet (Carnivora, Viverridae) and designation of a neotype. Zootaxa 160: 1–14.

  14. Gaubert P., Fernandes C. A., Bruford M. W. and Veron G. 2004a. Genets (Carnivora, Viverridae) in Africa: an evolutionary synthesis based on cytochrome b sequences and morphological characters. Biological Journal of the Linnean Society 81: 589–610.

  15. Gaubert P., Veron G., Delmas A.-S., Colyn M. and Tranier M. 2004b. First molecular evidence for reassessing phylogenetic affinities between genets (Genetta) and the enigmatic genet-like taxaOsbornictis, Poiana andPrionodon (Carnivora, Viverridae). Zoologica Scripta 33: 117–129.

  16. Gaubert P., Taylor P. J., Fernandes C. A., Bruford M. W. and Veron G. (in press). Patterns of cryptic hybridization revealed using an integrativre approach: a case study on genets (Carnivora, Viverridae,Genetta spp.) from the southern African subregion. Biological Journal of the Linnean Society.

  17. Kingdon J. 1977. East African Mammals: an atlas of evolution in Africa. Academic Press, London: 1–476.

  18. Kumamoto A. 1989. Large spotted genet (Genetta tigrina). House Report, San Diego Zoo, San Diego: 1–3.

  19. Maizeret C., Migot P., Rosoux R., Chusseau J.-P., Gatelier T., Maurin H. and Fournier-Chambrillon C. 2002. The distribution of the European mink (Mustela lutreola) in France: towards a short term extinction? Mammalia 66: 525–532.

  20. Matschie P. 1902. Ueber die individuellen und geographischen Abänderungen der Ginsterkatzen. Verhandlungen des V. Internationalen Zoologen-Congresses, Berlin: 1128-1144.

  21. Matthey R. 1964. The chromosome complement ofGenetta genetta L. (Carnivora-Viverridae). Mammalian Chromosomes Newsletter 17: 74.

  22. Pringle J. A. 1977. The distribution of mammals in Natal. Part 2. Carnivora. Annals of the Natal Museum 23: 93–115.

  23. Roberts A. 1951. The mammals of South Africa. Trustees of “The mammals of South Africa” Book Fund, Johannesburg: 1–700.

  24. Rosevear D. R. 1974. The carnivores of West Africa. The Trustees of the British Museum (Natural History), London: 1–548.

  25. Schlawe L. 1981. Material, Fundorte, Text- und Bildquellen als Grundlagen für eine Artenliste zur Revision der Gattung Genetta G. Cuvier, 1816. Zoologische Abhandlungen Staatliches Museum für Tierkunde in Dresden 37: 85–182.

  26. Seabright M. 1971. A rapid banding technique for human chromosomes. Lancet 2: 971–972.

  27. Sumner A. T. 1972. A simple technique for demonstrating centromeric heterochromatin. Experimental Cell Research 75: 304–306.

  28. Wenzel E. and Haltenorth T. 1972. System der Schleichkatzen (Viverridae). Säugetierkunde Mitteilungen 20: 110–127.

  29. Wozencraft W. C. 1993. Order Carnivora. [In: Mammals species of the world. A taxonomic and geographic reference. D. E. Wilson and D. M. Reeder, eds]. Smithsonian Institution Press, Washington: 279–348.

  30. Würster D. H. and Benirschke K. 1968. Comparative cytogenetic studies in the order Carnivora. Chromosoma 24: 336–382.

Download references

Author information

Additional information

Associate Editor Joseph F. Merritt.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Gaubert, P., Aniskin, V.M., Dunham, A.E. et al. Karyotype of the rare Johnston’s genetGenetta johnstoni (Viverridae) and a reassessment of chromosomal characterization among congeneric species. Acta Theriol 49, 457–464 (2004) doi:10.1007/BF03192590

Download citation

Key words

  • Genetta genetta
  • Genetta maculata
  • Genetta tigrina
  • large-spotted genet
  • complex
  • G- and C-banding, taxonomy