A comparative analysis of the karyotypes of three dolphins – Tursiops truncatus Montagu, 1821, Tursiops australis Charlton-Robb et al., 2011, and Grampus griseus Cuvier, 1812
Brookwell, R.; Finlayson, K.; van de Merwe, J.P. (2021). A comparative analysis of the karyotypes of three dolphins – Tursiops truncatus Montagu, 1821, Tursiops australis Charlton-Robb et al., 2011, and Grampus griseus Cuvier, 1812. Comparative Cytogenetics 15(1): 53-63. https://dx.doi.org/10.3897/compcytogen.v15.i1.60398
In: Comparative Cytogenetics. PENSOFT PUBL: Sofia. ISSN 1993-0771; e-ISSN 1993-078X, more
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| Keywords |
Grampus griseus (G. Cuvier, 1812) [WoRMS]; Tursiops australis Charlton-Robb, Gershwin, Thompson, Austin, Owen & McKechnie, 2011 [WoRMS]; Tursiops truncatus (Montagu, 1821) [WoRMS]
Marine/Coastal |
| Author keywords |
Burrunan, chromosome, Common Bottlenose, G-band, Risso’s dolphin |
| Authors | | Top |
- Brookwell, R.
- Finlayson, K.
- van de Merwe, J.P.
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| Abstract |
The aim of this study is to produce G-banded karyotypes of three dolphin species, Tursiops truncatus Montagu, 1821, Tursiops australis Charlton-Robb et al., 2011, and Grampus griseus Cuvier, 1812, and to determine if any differences between the species can be observed. Monolayer skin cultures were established and processed for chromosome study by trypsin banding. The results indicate that the three species here investigated have the same diploid number (2n = 44) and very similar gross chromosome morphology, however G-banding allows distinction between each species. Chromosome 1 in G. griseus is significantly different from the other 2 species, and chromosome 2 in T. australis is subtly different from the other 2 species. This result is of potential significance in taxonomic studies, and can provide an unequivocal answer in the assessment of suspected hybrids between these species. |
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