Photoreceptor Cells, InvertebratePhotoreceptor CellsPhotoreceptor Cells, VertebrateCell DifferentiationRod OpsinsRetinaRetinal Rod Photoreceptor CellsEye ProteinsRetinal Cone Photoreceptor CellsEyeDrosophila ProteinsDrosophilaGene Expression Regulation, DevelopmentalHomeodomain ProteinsTranscription FactorsBasic-Leucine Zipper Transcription FactorsInsect ProteinsSignal TransductionIn Situ HybridizationHedgehog ProteinsRetinal DegenerationImmunohistochemistryTrans-ActivatorsMolecular Sequence DataMutationLightRhodopsinAnimals, NewbornAmino Acid SequenceElectroretinographyRetinal Photoreceptor Cell Outer SegmentRod Cell Outer SegmentPhotoreceptor Connecting CiliumLight Signal TransductionDark AdaptationPhotoreceptors, PlantCells, CulturedOpsinsVision, OcularStem CellsRetinitis PigmentosaRetinal PigmentsRNA, MessengerMice, Inbred C57BLGene Expression RegulationCell LinePhotoreceptors, MicrobialCell LineageArrestinFluorescent Antibody Technique, IndirectCyclic Nucleotide Phosphodiesterases, Type 6TransducinSex DifferentiationAdaptation, OcularEmbryonic Stem CellsMice, KnockoutPigment Epithelium of EyeReverse Transcriptase Polymerase Chain ReactionCell ProliferationMice, TransgenicCell DivisionDarknessPhenotypeBase SequenceNerve Tissue ProteinsGene ExpressionAnimals, Genetically ModifiedTretinoinRadiation Injuries, ExperimentalDNA-Binding ProteinsBlotting, WesternRetinal Pigment EpitheliumCryptochromesHorseshoe CrabsPhytochromePeripherinsRetinal Photoreceptor Cell Inner SegmentNeuronsCone OpsinsZebrafishTime FactorsRecoverinModels, BiologicalBasic Helix-Loop-Helix Transcription FactorsCell SurvivalRetinal Bipolar CellsApoptosisCompound Eye, ArthropodRats, Mutant StrainsAntigens, DifferentiationMembrane ProteinsOsteogenesisOsteoblastsCell Culture TechniquesMice, Mutant StrainsMorphogenesis3',5'-Cyclic-GMP PhosphodiesterasesCell CountRetinaldehydeUrodela