Results 1 to 10 of about 28,928 (224)

Parallel Losses of Blue Opsin Correlate with Compensatory Neofunctionalization of UV-Opsin Gene Duplicates in Aphids and Planthoppers

open access: yesInsects, 2023
Expanding on previous efforts to survey the visual opsin repertoires of the Hemiptera, this study confirms that homologs of the UV- and LW-opsin subfamilies are conserved in all Hemiptera, while the B-opsin subfamily is missing from the Heteroptera and ...
Markus Friedrich
doaj   +2 more sources

Nano-Enhanced Optical Delivery of Multi-Characteristic Opsin Gene for Spinal Optogenetic Modulation of Pain [PDF]

open access: yesBioengineering
Optogenetic modulation employs light-sensitive proteins known as opsins to regulate cellular activity. A unique therapeutic application of this technique involves modulating pain perception by selectively targeting neural pathways within the spinal cord.
Darryl Narcisse   +3 more
doaj   +2 more sources

Single opsin driven white noise ERGs in mice [PDF]

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   +2 more sources

Cone Opsins and Inherited Retinal Disease [PDF]

open access: yesCells
Opsins are the light receptors in retinal rod and cone photoreceptor cells that initiate vision in response to a light stimulus. Rhodopsin is the opsin in rods, and the influence of mutations that disrupt its structure and function has been characterized
Maya Tang, Paul S.-H. Park
doaj   +2 more sources

Gene expression patterns of novel visual and non-visual opsin families in immature and mature Japanese eel males [PDF]

open access: yesPeerJ, 2020
This study was carried out to identify and estimate physiological function of a new type of opsin subfamily present in the retina and whole brain tissues of Japanese eel using RNA–Seq transcriptome method.
Jun-Hwan Byun   +9 more
doaj   +2 more sources

Evolution and expression plasticity of opsin genes in a fig pollinator, Ceratosolen solmsi. [PDF]

open access: yesPLoS ONE, 2013
Figs and fig pollinators have co-evolved species-specific systems of mutualism. So far, it was unknown how visual opsin genes of pollinators have evolved in the light conditions inside their host figs.
Bo Wang   +5 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

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

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