Results 11 to 20 of about 38,225 (233)

Single opsin driven white noise ERGs in mice

open access: yesFrontiers in Neuroscience, 2023
PurposeElectroretinograms elicited by photopigment isolating white noise stimuli (wnERGs) in mice were measured. The dependency of rod- and cone-opsin-driven wnERGs on mean luminance was studied.MethodsTemporal white noise stimuli (containing all ...
Nina Stallwitz   +4 more
doaj   +1 more source

An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity

open access: yesFrontiers in Neuroanatomy, 2022
Salmonids are ideal models as many species follow a distinct developmental program from demersal eggs and a large yolk sac to hatching at an advanced developmental stage. Further, these economically important teleosts inhabit both marine- and freshwaters
Mariann Eilertsen   +12 more
doaj   +1 more source

Modeling binary and graded cone cell fate patterning in the mouse retina.

open access: yesPLoS Computational Biology, 2020
Nervous systems are incredibly diverse, with myriad neuronal subtypes defined by gene expression. How binary and graded fate characteristics are patterned across tissues is poorly understood.
Kiara C Eldred   +3 more
doaj   +1 more source

The expression of three opsin genes from the compound eye of Helicoverpa armigera (Lepidoptera: Noctuidae) is regulated by a circadian clock, light conditions and nutritional status. [PDF]

open access: yesPLoS ONE, 2014
Visual genes may become inactive in species that inhabit poor light environments, and the function and regulation of opsin components in nocturnal moths are interesting topics.
Shuo Yan   +6 more
doaj   +1 more source

Unconventional Roles of Opsins [PDF]

open access: yesAnnual Review of Cell and Developmental Biology, 2017
Rhodopsin is the classical light sensor. Although rhodopsin has long been known to be important for image formation in the eye, the requirements for opsins in non–image formation and in extraocular light sensation were revealed much later. Most recent is the demonstration that an opsin in the fruit fly, Drosophila melanogaster, is expressed in ...
Leung, Nicole Y, Montell, Craig
openaire   +5 more sources

A fish eye out of water: ten visual opsins in the four-eyed fish, Anableps anableps. [PDF]

open access: yesPLoS ONE, 2009
The "four-eyed" fish Anableps anableps has numerous morphological adaptations that enable above and below-water vision. Here, as the first step in our efforts to identify molecular adaptations for aerial and aquatic vision in this species, we describe ...
Gregory L Owens   +3 more
doaj   +1 more source

Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]

open access: yes, 2017
Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core   +1 more source

A live cell assay of GPCR coupling allows identification of optogenetic tools for controlling Go and Gi signaling

open access: yesBMC Biology, 2018
Background Animal opsins are light-sensitive G-protein-coupled receptors (GPCRs) that enable optogenetic control over the major heterotrimeric G-protein signaling pathways in animal cells.
Edward R. Ballister   +3 more
doaj   +1 more source

Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]

open access: yes, 2013
A quantitative analysis of photoreceptor properties was performed in the retina of the nocturnal deer mouse, Peromyscus maniculatus, using pigmented (wildtype) and albino animals.
Arbogast, Patrick   +2 more
core   +2 more sources

Bat eyes have ultraviolet-sensitive cone photoreceptors. [PDF]

open access: yesPLoS ONE, 2009
Mammalian retinae have rod photoreceptors for night vision and cone photoreceptors for daylight and colour vision. For colour discrimination, most mammals possess two cone populations with two visual pigments (opsins) that have absorption maxima at short
Brigitte Müller   +5 more
doaj   +1 more source

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