Results 11 to 20 of about 40,625 (235)
Opsin evolution in the Ambulacraria [PDF]
Marine Genomics, 2015 Opsins--G-protein coupled receptors involved in photoreception--have been extensively studied in the animal kingdom. The present work provides new insights into opsin-based photoreception and photoreceptor cell evolution with a first analysis of opsin sequence data for a major deuterostome clade, the Ambulacraria.
D'Aniello, S +14 more
openaire +6 more sources
Evolution and expression plasticity of opsin genes in a fig pollinator, Ceratosolen solmsi. [PDF]
PLoS 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
Single opsin driven white noise ERGs in mice
Frontiers 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
Frontiers 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.
PLoS 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
A fish eye out of water: ten visual opsins in the four-eyed fish, Anableps anableps. [PDF]
PLoS 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
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]
PLoS 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]
Annual 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
BMC 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
Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]
, 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