Tom Baden, Juan M Angueyra, Jenny M Bosten, Shaun P Collin, Bevil R Conway, Fabio Cortesi, Karin Dedek, Thomas Euler, Iñigo Novales Flamarique, Anna Franklin, Silke Haverkamp, Almut Kelber, Stephan C F Neuhauss, Wei Li, Robert J Lucas, Daniel C Osorio, Karthik Shekhar, Dario Tommasini, Takeshi Yoshimatsu, Joseph C Corbo
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A standardized nomenclature for the rods and cones of the vertebrate retina.
Vertebrate photoreceptors have been studied for well over a century, but a fixed nomenclature for referring to orthologous cell types across diverse species has been lacking. Instead, photoreceptors have been variably-and often confusingly-named according to morphology, presence/absence of 'rhodopsin', spectral sensitivity, chromophore usage, and/or the gene family of the opsin(s) they express. Here, we propose a unified nomenclature for vertebrate rods and cones that aligns with the naming systems of other retinal cell classes and that is based on the photoreceptor type's putative evolutionary history. This classification is informed by the functional, anatomical, developmental, and molecular identities of the neuron as a whole, including the expression of deeply conserved transcription factors required for development. The proposed names will be applicable across all vertebrates and indicative of the widest possible range of properties, including their postsynaptic wiring, and hence will allude to their common and species-specific roles in vision. Furthermore, the naming system is open-ended to accommodate the future discovery of as-yet unknown photoreceptor types.
期刊介绍:
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