When is a species not a species? Uncoupled phenotypic, karyotypic and genotypic divergence in two species of South African laminate-toothed rats (Murinae: Otomyini)

  1. P. J. Taylor1,
  2. S. Maree2,3,
  3. J. Van Sandwyk2,
  4. R. Baxter4,
  5. R. V. Rambau5,6

Article first published online: 16 FEB 2009

DOI: 10.1111/j.1469-7998.2008.00542.x

Issue

Journal of Zoology

Journal of Zoology

Volume 277, Issue 4, pages 317–332, April 2009

Additional Information

How to Cite

Taylor, P. J., Maree, S., Van Sandwyk, J., Baxter, R. and Rambau, R. V. (2009), When is a species not a species? Uncoupled phenotypic, karyotypic and genotypic divergence in two species of South African laminate-toothed rats (Murinae: Otomyini). Journal of Zoology, 277: 317–332. doi: 10.1111/j.1469-7998.2008.00542.x

Author Information

  1. 1

    Durban Natural Science Museum, Durban, South Africa

  2. 2

    Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria, South Africa

  3. 3

    Molecular Ecology and Evolution Programme, Department of Genetics, University of Pretoria, Pretoria, South Africa

  4. 4

    Department of Ecology and Resource Management, University of Venda, Thohoyandou, South Africa

  5. 5

    Evolutionary Genomics Group, Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa

  6. 6

    DST-NRF Centre of Excellence for Invasion Biology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa

*Correspondence Peter John Taylor, Durban Natural Science Museum, PO Box 4085, Durban 4000, South Africa. Email: taylorpeter@durban.gov.za

  1. Editor: Jean-Nicolas Volff

Publication History

  1. Issue published online: 18 MAR 2009
  2. Article first published online: 16 FEB 2009
  3. Received 9 September 2008; revised 27 November 2008; accepted 1 December 2008

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Figure S1. A summary of the FISH results indicating mapping of the complete suite of M. unisulcatus whole chromosome probes (N=13 plus the X) to the G-banded metaphase chromosomes of O. irroratus (2n=28) and O. karoensis (2n=28). (a) G-banded karyotype of O. irroratus (DM8388) with the 35 regions of homology identified by the M. unisulcatus chromosomes. (b) G-banded karyotype of O. karoensis (DM 8396) with the 34 regions of homology identified by the M. unisulcatus chromosomes. Vertical lines indicate the extent of the conserved homology identified by respective M. unisulcatus chromosomes which are represented by adjacent numbers. The asterisk indicates heterochromatic regions which were not hybridized.

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