Visual pigments of African cichlid fishes: evidence for ultraviolet vision from microspectrophotometry and DNA sequences

@article{Carleton2000VisualPO,
  title={Visual pigments of African cichlid fishes: evidence for ultraviolet vision from microspectrophotometry and DNA sequences},
  author={Karen L. Carleton and Ferenc I. H{\'a}rosi and Thomas D. Kocher},
  journal={Vision Research},
  year={2000},
  volume={40},
  pages={879-890}
}
We have found evidence for ultraviolet visual capabilities in a Lake Malawi cichlid fish, Metriaclima zebra. Microspectrophotometry of single cones revealed a visual pigment with peak sensitivity at 368+/-4 nm. M. zebra also expresses a putative ultraviolet opsin gene whose sequence is closely related to the SWS-1 opsin for other fishes. Several other African cichlids have a functional copy of this UV gene in their genomic DNA, but do not appear to express this gene as adults. These results… Expand
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