scholarly journals Ultraviolet vision in lacertid lizards: evidence from retinal structure, eye transmittance, SWS1 visual pigment genes and behaviour

2014 ◽  
Vol 217 (16) ◽  
pp. 2899-2909 ◽  
Author(s):  
G. P. i. de Lanuza ◽  
E. Font
Keyword(s):  
Visual Pigment ◽  
Lacertid Lizards ◽  
Pigment Genes ◽  
Ultraviolet Vision ◽  
Retinal Structure

scholarly journals Ultraviolet vision in larval Neogonodactylus oerstedii

2022 ◽  
Author(s):  
Marisa S. McDonald ◽  
Sitara Palecanda ◽  
Jonathan H. Cohen ◽  
Megan L. Porter
Keyword(s):  
Visual Pigment ◽  
Molecular Diversity ◽  
Animal Kingdom ◽  
Uv Sensitivity ◽  
Color Detection ◽  
Uv Vision ◽  
Ultraviolet Vision ◽  
The Caribbean ◽  
Different Color ◽  
Spectral Channels

Stomatopod crustaceans have among the most complex eyes in the animal kingdom, with up to twelve different color detection channels. The capabilities of these unique eyes include photoreception of ultraviolet (UV) wavelengths (<400 nm). UV vision has been well characterized in adult stomatopods but has not been previously demonstrated in the comparatively simpler larval eye. Larval stomatopod eyes are developmentally distinct from their adult counterpart and have been described as lacking the visual pigment diversity and morphological specializations found in adult eyes. However, recent studies have provided evidence that larval stomatopod eyes are more complex than previously thought and warrant closer investigation. Using electroretinogram recordings in live animals we found physiological evidence of blue and UV sensitive photoreceptors in larvae of the Caribbean stomatopod species Neogonodactylus oerstedii. Transcriptomes of individual larvae were used to identify the expression of three distinct UV opsins transcripts, which may indicate the presence of multiple UV spectral channels. This is the first paper to document UV vision in any larval stomatopod, expanding our understanding of the importance of UV sensitivity in plankton. Similar to adults, larval stomatopod eyes are more complex than expected and contain previously uncharacterized molecular diversity and physiological functions.

A locus control region adjacent to the human red and green visual pigment genes

Neuron ◽  
1992 ◽  
Vol 9 (3) ◽  
pp. 429-440 ◽  
Author(s):  
Yanshu Wang ◽  
Jennifer P. Macke ◽  
Shannath L. Merbs ◽  
Donald J. Zack ◽  
Brenda Klaunberg ◽  
...  
Keyword(s):  
Control Region ◽  
Visual Pigment ◽  
Locus Control Region ◽  
Pigment Genes

scholarly journals Analysis of introns and promoters of L/M visual pigment genes in relation to deutan color-vision deficiency with an array of normal gene orders

2009 ◽  
Vol 54 (9) ◽  
pp. 525-530 ◽  
Author(s):  
Hisao Ueyama ◽  
Shoko Tanabe ◽  
Sanae Muraki-Oda ◽  
Shinichi Yamade ◽  
Masahito Ohji ◽  
...  
Keyword(s):  
Color Vision ◽  
Visual Pigment ◽  
Color Vision Deficiency ◽  
Normal Gene ◽  
Pigment Genes

Sequence divergence, polymorphism and evolution of the middle-wave and long-wave visual pigment genes of great apes and old world monkeys

1994 ◽  
Vol 34 (19) ◽  
pp. 2483-2491 ◽  
Author(s):  
Kanwaljit S. Dulai ◽  
James K. Bowmaker ◽  
John D. Mollon ◽  
David M. Hunt
Keyword(s):  
Visual Pigment ◽  
Sequence Divergence ◽  
Great Apes ◽  
Old World Monkeys ◽  
Old World ◽  
Long Wave ◽  
Pigment Genes

scholarly journals Evolution and spectral tuning of visual pigments in birds and mammals

2009 ◽  
Vol 364 (1531) ◽  
pp. 2941-2955 ◽  
Author(s):  
David M. Hunt ◽  
Livia S. Carvalho ◽  
Jill A. Cowing ◽  
Wayne L. Davies
Keyword(s):  
Visual System ◽  
Visual Pigment ◽  
Spectral Characteristics ◽  
Marine Species ◽  
Visual Pigments ◽  
Common Mechanism ◽  
Light Conditions ◽  
Uv Sensitivity ◽  
Pigment Genes ◽  
Number Of Classes

Variation in the types and spectral characteristics of visual pigments is a common mechanism for the adaptation of the vertebrate visual system to prevailing light conditions. The extent of this diversity in mammals and birds is discussed in detail in this review, alongside an in-depth consideration of the molecular changes involved. In mammals, a nocturnal stage in early evolution is thought to underlie the reduction in the number of classes of cone visual pigment genes from four to only two, with the secondary loss of one of these genes in many monochromatic nocturnal and marine species. The trichromacy seen in many primates arises from either a polymorphism or duplication of one of these genes. In contrast, birds have retained the four ancestral cone visual pigment genes, with a generally conserved expression in either single or double cone classes. The loss of sensitivity to ultraviolet (UV) irradiation is a feature of both mammalian and avian visual evolution, with UV sensitivity retained among mammals by only a subset of rodents and marsupials. Where it is found in birds, it is not ancestral but newly acquired.

scholarly journals Evolution of ultraviolet vision in shorebirds (Charadriiformes)

2009 ◽  
Vol 6 (3) ◽  
pp. 370-374 ◽  
Author(s):  
Anders Ödeen ◽  
Olle Håstad ◽  
Per Alström
Keyword(s):  
Amino Acid ◽  
Visual Pigment ◽  
Colour Vision ◽  
Gene Tree ◽  
Amino Acid Position ◽  
Opsin Gene ◽  
Avian Evolution ◽  
Ultraviolet Vision ◽  
Rynchops Niger ◽  
Sws1 Opsin Gene

Diurnal birds belong to one of two classes of colour vision. These are distinguished by the maximum absorbance wavelengths of the SWS1 visual pigment sensitive to violet (VS) and ultraviolet (UVS). Shifts between the classes have been rare events during avian evolution. Gulls (Laridae) are the only shorebirds (Charadriiformes) previously reported to have the UVS type of opsin, but too few species have been sampled to infer that gulls are unique among shorebirds or that Laridae is monomorphic for this trait. We have sequenced the SWS1 opsin gene in a broader sample of species. We confirm that cysteine in the key amino acid position 90, characteristic of the UVS class, has been conserved throughout gull evolution but also that the terns Anous minutus, A. tenuirostris and Gygis alba , and the skimmer Rynchops niger carry this trait. Terns, excluding Anous and Gygis , share the VS conferring serine in position 90 with other shorebirds but it is translated from a codon more similar to that found in UVS shorebirds. The most parsimonious interpretation of these findings, based on a molecular gene tree, is a single VS to UVS shift and a subsequent reversal in one lineage.

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