... Colour vision Opsin Gene expression Visual pigment Retinal topography Visual acuity Australian Research Council http://dx.doi.org/10.13039/501100000923 FT190100313 LE100100074 DP180102363 DP150102710 DE200100620 DE180100949 The University of Queensland...

...Karen L. Carleton; Daniel Escobar-Camacho; Sara M. Stieb; Fabio Cortesi; N. Justin Marshall ABSTRACT Among vertebrates, teleost eye diversity exceeds that found in all other groups. Their spectral sensitivities range from ultraviolet to red, and the number of visual pigments varies from 1 to over...

...James M. Morrow; Savo Lazic; Monica Dixon Fox; Claire Kuo; Ryan K. Schott; Eduardo de A. Gutierrez; Francesco Santini; Vincent Tropepe; Belinda S. W. Chang ABSTRACT Rhodopsin ( rh1 ) is the visual pigment expressed in rod photoreceptors of vertebrates that is responsible for initiating the critical...

...-sensitive (LWS) visual pigment, a ‘short’ and ‘long’ medium-wavelength-sensitive (MWS) pigment and a short-wavelength-sensitive (SWS) pigment, all of which did not differ in λ max between lineages. Through transcriptome analysis of opsin genes we found that both lineages express four cone opsin genes...

... the ocular media (i.e. the lens and cornea) absorb UV radiation. In vitro expression and reconstitution was used to determine the absorbance spectra of rod and cone visual pigments. The rod visual pigments had wavelengths of peak absorbance (λ max ) at 500 nm, whereas the cone visual pigment λ max values...

...   M. , Stavenga   D. G. ( 2003 ). Coexpression of two visual pigments in a photoreceptor causes an abnormally broad spectral sensitivity in the eye of the butterfly Papilio xuthus . J. Neurosci.   23 , 4527 - 4532 . Brammer   J. D. ( 1970 ). The ultrastructure of the compound eye...

... it an ideal candidate for intraspecific differences in spectral sensitivity. Here, the visual pigments of P. elegans were fully characterised through molecular sequencing of five visual opsin genes and measurement of their absorbance spectra using microspectrophotometry. Three of the genes, LWS , SW1 and SWS2...

... a combination of anatomy, molecular biology and intracellular electrophysiology, with a particular focus on the evolution of butterfly eyes. We found that their eyes consist of three types of ommatidia, with a basic set of one short-, one middle- and one long-wavelength-absorbing visual pigment. The spectral...

... sensitivities could be well reproduced by an optical model assuming a long-wavelength-absorbing visual pigment with peak absorbance at 565 nm. Whereas the sexual dimorphism was unequivocally demonstrated for the ventral eye region, dimorphism in the dorsal region was not found. Presumably the ventral region...

...Sergei L. Kondrashev; Taeko Miyazaki; Nina E. Lamash; Tohru Tsuchiya SUMMARY A complement of cone visual pigments was identified in the Japanese anchovy Engraulis japonicus , one of the engraulid fish species that has a retina specialized for polarization and color vision. The nature...

... no significant interspecific variation in visual pigment peak spectral absorbance values that ranged between 404–410, 454, 503–511 and 558–568 nm, respectively. Mean cut-off wavelength values for C-, Y-, R- and P-type coloured oil droplets were 418–441, 508–523, 558–573 and 412–503 nm, respectively, with values...

... trichromatic vision. * Author for correspondence ( [email protected] ) 22 9 2010 © 2010. 2010 color vision photoreceptor visual pigment rhodopsin Uca pugilator fiddler crab Animal coloration has long been implicated in intraspecific signaling ( Darwin, 1871...

...T. J. Lisney; E. Studd; C. W. Hawryshyn SUMMARY The cichlid fish radiations of the African Great Lakes are an important model for evolutionary biology. Cichlids have diverse colour vision systems and predominately express three cone visual pigments. However, rare populations of spectrally distinct...

... visual pigment evolutionary adaptation Pure water transmits light maximally in the blue range of the spectrum, but in natural coastal and fresh waters, blue light is strongly absorbed and scattered by dissolved organic or inorganic matter. When going from marine to coastal, brackish or fresh...

...Adriana D. Briscoe SUMMARY The eyes of butterflies are remarkable, because they are nearly as diverse as the colors of wings. Much of eye diversity can be traced to alterations in the number, spectral properties and spatial distribution of the visual pigments. Visual pigments are light-sensitive...

... of their opsin-based visual pigments in color vision can be assessed. In the present study, we demonstrate that the lycaenid Polyommatus icarus uses its duplicate blue (B2) opsin, BRh2 , in conjunction with its long-wavelength (LW) opsin, LWRh , to see color in the green part of the light spectrum extending up...

... by fitting a visual pigment template to the difference spectrum( Govardovskii et al.,2000 ). Fig. 5. Spectra of in vitro expressed RH1A and RH1B pigments. In both cases, a difference spectrum obtained by subtracting the bleached spectrum from the dark spectrum is shown. λmax values were obtained by fitting...

... divergence remains largely unexplored. Here we report that the butterfly Lycaena rubidus has evolved sexually dimorphic eyes due to changes in the regulation of opsin expression patterns to match the contrasting life histories of males and females. The L. rubidus eye contains four visual pigments with peak...

...Anne C. Utne-Palm; James K. Bowmaker SUMMARY Microspectrophotometry of Gobiusculus flavescens photoreceptors revealed a single rod visual pigment (λ max at 508 nm) and the three cone pigments (λ max 456, 531 and 553 nm). The cone population was dominated by identical double cones containing...

...J. C. Partridge; E. M. White; R. H. Douglas SUMMARY The effect of hydrostatic pressure (0.1-54 MPa, equivalent to pressures experienced by fish from the ocean's surface to depths of ca. 5400 m) on visual pigment absorption spectra was investigated for rod visual pigments extracted from the retinae...