Cone topography and spectral sensitivity in two potentially trichromatic marsupials, the quokka (Setonix brachyurus) and quenda (Isoodon obesulus).

@article{Arrese2005ConeTA,
  title={Cone topography and spectral sensitivity in two potentially trichromatic marsupials, the quokka (Setonix brachyurus) and quenda (Isoodon obesulus).},
  author={Catherine A. Arrese and Alison Y Oddy and Philip B Runham and Nathan Scott Hart and Julia Shand and David M Hunt and Lyn Beazley},
  journal={Proceedings. Biological sciences},
  year={2005},
  volume={272 1565},
  pages={791-6}
}
The potential for trichromacy in mammals, thought to be unique to primates, was recently discovered in two Australian marsupials. Whether the presence of three cone types, sensitive to short- (SWS), medium- (MWS) and long- (LWS) wavelengths, occurs across all marsupials remains unknown. Here, we have investigated the presence, distribution and spectral sensitivity of cone types in two further species, the quokka (Setonix brachyurus) and quenda (Isoodon obesulus). Immunohistochemistry revealed… CONTINUE READING
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