Results 71 to 80 of about 38,225 (233)

Overcoming the loss of blue sensitivity through opsin duplication in the largest animal group, beetles

open access: yesScientific Reports, 2017
Opsin proteins are fundamental components of animal vision whose structure largely determines the sensitivity of visual pigments to different wavelengths of light.
Camilla R. Sharkey   +7 more
doaj   +1 more source

Unique Temporal Expression of Triplicated Long-Wavelength Opsins in Developing Butterfly Eyes

open access: yesFrontiers in Neural Circuits, 2017
Following gene duplication events, the expression patterns of the resulting gene copies can often diverge both spatially and temporally. Here we report on gene duplicates that are expressed in distinct but overlapping patterns, and which exhibit ...
Kentaro Arikawa   +3 more
doaj   +1 more source

Rapid adaptive evolution of colour vision in the threespine stickleback radiation. [PDF]

open access: yes, 2016
Vision is a sensory modality of fundamental importance for many animals, aiding in foraging, detection of predators and mate choice. Adaptation to local ambient light conditions is thought to be commonplace, and a match between spectral sensitivity and ...
Heckman, Nancy   +4 more
core  

The opsins.

open access: yesGenome biology, 2005
The photosensitive molecule rhodopsin and its relatives consist of a protein moiety - an opsin - and a non-protein moiety - the chromophore retinal. Opsins, which are G-protein-coupled receptors (GPCRs), are found in animals, and more than a thousand have been identified so far.
openaire   +2 more sources

Material Strategies for Stimulation and Recording in Neural Biocomputing Platforms

open access: yesAdvanced Electronic Materials, EarlyView.
Material strategies enabling stimulation and recording are central to neural biocomputing systems. This review examines how electronic materials govern the encoding of inputs and decoding of outputs in living neural networks. Advances in electrical, optical, and multimodal interfaces highlight emerging design principles for biocomputing platforms ...
Sehong Kang   +5 more
wiley   +1 more source

Extraocular, rod-like photoreceptors in a flatworm express xenopsin photopigment

open access: yeseLife, 2019
Animals detect light using opsin photopigments. Xenopsin, a recently classified subtype of opsin, challenges our views on opsin and photoreceptor evolution.
Kate A Rawlinson   +14 more
doaj   +1 more source

Nematostella vectensis exemplifies the exceptional expansion and diversity of opsins in the eyeless Hexacorallia

open access: yesEvoDevo, 2023
Background Opsins are the primary proteins responsible for light detection in animals. Cnidarians (jellyfish, sea anemones, corals) have diverse visual systems that have evolved in parallel with bilaterians (squid, flies, fish) for hundreds of millions ...
Kyle J. McCulloch   +5 more
doaj   +1 more source

The Cone Dysfunction Syndromes [PDF]

open access: yes, 2016
The cone dysfunction syndromes are a heterogeneous group of inherited, predominantly stationary retinal disorders characterised by reduced central vision, and varying degrees of colour vision abnormalities, nystagmus and photophobia.
Aboshiha, J   +4 more
core  

Wild-type opsin does not aggregate with a misfolded opsin mutant

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2016
Rhodopsin is the light receptor in photoreceptor cells that plays a central role in phototransduction and photoreceptor cell health. Mutations in rhodopsin are the leading cause of autosomal dominant retinitis pigmentosa (adRP), a retinal degenerative disease. A majority of mutations in rhodopsin cause misfolding and aggregation of the apoprotein opsin.
Megan, Gragg   +3 more
openaire   +2 more sources

Loss, persistence and reversal of phenotypic traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni   +4 more
wiley   +1 more source

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