Evolution of vertebrate visual pigments

  title={Evolution of vertebrate visual pigments},
  author={James. K. Bowmaker},
  journal={Vision Research},
  • J. Bowmaker
  • Published 1 September 2008
  • Biology, Environmental Science
  • Vision Research

Evolution of phototransduction, vertebrate photoreceptors and retina

  • T. Lamb
  • Biology
    Progress in Retinal and Eye Research
  • 2013

Evolution of vertebrate rod and cone phototransduction genes

No less than 10 of the 13 studied phototransduction gene families received additional members in the two basal vertebrate tetraploidizations, and the implications of the many early vertebrate gene duplications for functional specialization of specific retinal cell types, particularly cones and rods are discussed.

Visual Pigments, Ocular Filters and the Evolution of Snake Vision.

Positive selection was inferred at multiple sites in all three opsins, these being concentrated in transmembrane domains and thus likely to have a substantial effect on spectral tuning and other aspects of opsin function.

Molecular Evolution of Visual System Genes in Fishes

This thesis presents a collection of evolutionary studies on two gene families, opsins and crystallins, and focuses on teleost fishes, because teleost visual ecology is exceptionally diverse and because gene duplication is common in this group.

Retinal parallel pathways: Seeing with our inner fish

Molecular Evolution of Ultraviolet Visual Opsins and Spectral Tuning of Photoreceptors in Anemonefishes (Amphiprioninae)

This work investigates the visual systems of eleven anemonefish species, specifically probing for the molecular pathways that facilitate UV-sensitivity, and reports on both qualitative and quantitative aspects of opsin gene expression found in the adult retina of the false clown anem onefish, and their photoreceptor spectral sensitivities measured using microspectrophotometry.

Visual pigment evolution in Characiformes: the dynamic interplay of teleost whole-genome duplication, surviving opsins and spectral tuning

The visual system of Neotropical Characiformes is characterized, which is the result of several spectral tuning mechanisms acting in concert including gene duplications and losses, gene conversion, opsin amino acid sequence and expression variation, and A1/A2-chromophore shifts.

Evolutionary analyses of visual opsin genes in anurans reveals diversity and positive selection suggestive of functional adaptation to distinct light environments

North American anurans representing diverse evolutionary and life histories that likely possess visual systems adapted to meet different ecological needs are sampled, suggesting that other ecological factors, such as habitat and life history, as well as behaviour, may be driving changes to anuran visual systems.



Long-wavelength sensitive visual pigments of the guppy (Poecilia reticulata): six opsins expressed in a single individual

Describing the LWS opsins from cDNA of an individual guppy, Poecilia reticulata, a fish that is known exhibit variation in its long-wavelength sensitive visual system, mate preferences and colour patterns, revealed that these opsins descend from duplication events both pre-dating and following the divergence of the guppy lineage from that of the bluefin killifish, Lucania goodei.

Avian Visual Pigments: Characteristics, Spectral Tuning, and Evolution

In birds, UVS visual pigments have re‐evolved from an ancestral avian VS pigment by using a novel molecular mechanism not seen in other vertebrate classes, which has occurred independently in four of the 14 avian orders examined to date.

Cone visual pigments of aquatic mammals

The hypothesis that in the monochromatic oceanic habitat, the pressure to maintain color vision has been relaxed and mutations are retained in the SWS genes, resulting in pseudogenes is supported.

The ecology of cone pigments in teleost fishes

Genetic evidence for the ancestral loss of short-wavelength-sensitive cone pigments in mysticete and odontocete cetaceans

  • D.H. LevensonA. Dizon
  • Biology
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2003
All modern cetaceans lack functional SWS cone visual pigments and, by extension, the visual capacities that such pigments typically support.

Vision in Fish