Cone opsin genes of african cichlid fishes: tuning spectral sensitivity by differential gene expression.

  title={Cone opsin genes of african cichlid fishes: tuning spectral sensitivity by differential gene expression.},
  author={Karen L Carleton and Thomas D Kocher},
  journal={Molecular biology and evolution},
  volume={18 8},
Spectral tuning of visual pigments is typically accomplished through changes in opsin amino acid sequence. Within a given opsin class, changes at a few key sites control wavelength specificity. To investigate known differences in the visual pigment spectral sensitivity of the Lake Malawi cichlids, Metriaclima zebra (368, 488, and 533 nm) and Dimidiochromis compressiceps (447, 536, and 569 nm), we sequenced cone opsin genes from these species as well as Labeotropheus fuelleborni and Oreochromis… CONTINUE READING
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