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The vertebrate retina has about 30 subtypes of ganglion cells. Each ganglion cell receives synaptic inputs from specific types of bipolar and amacrine cells ramifying at the same depth of the inner plexiform layer (IPL), each of which is thought to process a specific aspect of visual information. Here, we identified one type of displaced ganglion cell in the goldfish retina which had a large and elongated dendritic field. As a population, all of these ganglion cells were oriented in the horizontal axis and perpendicular to the dorsal-ventral axis of the goldfish eye in the central part of retina. This ganglion cell has previously been classified as Type 1.2. However, the circuit elements which synapse with this ganglion cell are not yet characterized. We found that this displaced ganglion cell was directly tracer-coupled only with homologous ganglion cells at sites containing Cx35/36 puncta. We further illustrated that the processes of dopaminergic neurons often terminated next to intersections between processes of ganglion cells, close to where dopamine D1 receptors were localized. Finally, we showed that Mb1 ON bipolar cells had ribbon synapses in the axonal processes passing through the IPL and made ectopic synapses with this displaced ganglion cell that stratified into stratum 1 of the IPL. These results suggest that the displaced ganglion cell may synapse with both Mb1 cells using ectopic ribbon synapses and OFF cone bipolar cells with regular ribbon synapses in the IPL to function in both scotopic and photopic light conditions.
Pubmed ID: 28921532 RIS Download
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View all literature mentionsThis monoclonal targets CtBP (B-3)
View all literature mentionsThis monoclonal targets Connexin 35 / 36 (Cx35 / Cx36)
View all literature mentionsThis polyclonal targets Dopamine D1A Receptor
View all literature mentionsThis monoclonal targets Tyrosine Hydroxylase
View all literature mentionsThis polyclonal targets p-PKC alpha (Ser 657)
View all literature mentionsSoftware for image processing, analysis, and editing. The software includes features such as touch capabilities, a customizable toolbar, 2D and 3D image merging, and Cloud access and options.
View all literature mentionsMicroscope imaging software suite used with Nikon products. NIS-Elements includes software applications for advanced and standard research, documentation, confocal microscopy, and high-content analysis.
View all literature mentionsThis polyclonal targets Choline Acetyltransferase
View all literature mentionsThis monoclonal targets CtBP (B-3)
View all literature mentionsThis monoclonal targets Connexin 35 / 36 (Cx35 / Cx36)
View all literature mentionsThis monoclonal targets Tyrosine Hydroxylase
View all literature mentionsThis polyclonal targets Dopamine D1A Receptor
View all literature mentionsSoftware package as distribution of ImageJ and ImageJ2 together with Java, Java3D and plugins organized into coherent menu structure. Used to assist research in life sciences.
View all literature mentionsThis polyclonal targets Choline Acetyltransferase
View all literature mentionsThis polyclonal targets p-PKC alpha (Ser 657)
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