Circadian ClocksCLOCK ProteinsCircadian RhythmBiological ClocksZebrafish ProteinsPeriod Circadian ProteinsARNTL Transcription FactorsCryptochromesPhotoperiodCircadian Rhythm Signaling Peptides and ProteinsSuprachiasmatic NucleusLightNuclear Receptor Subfamily 1, Group D, Member 1FlavoproteinsAnimals, Genetically ModifiedDarknessEmbryo, NonmammalianFeedback, PhysiologicalTranscription FactorsBasic Helix-Loop-Helix Transcription FactorsGene Expression Regulation, DevelopmentalChronobiology DisordersGene Expression RegulationArabidopsisArabidopsis ProteinsCasein Kinase IepsilonGene Expression Regulation, PlantPhotoreceptor Cells, InvertebrateMutationDrosophila ProteinsSynechococcusIn Situ HybridizationNuclear ProteinsMolecular Sequence DataNeurospora crassaMotor ActivityActivity CyclesLight Signal TransductionMelatoninPineal GlandModels, BiologicalE-Box ElementsCasein Kinase IdeltaMorpholinosRNA, MessengerTrans-ActivatorsLarvaJet Lag SyndromeMammalsDrug ChronotherapyAmino Acid SequenceSignal TransductionBody PatterningOscillometryCell Cycle ProteinsPeriodicityPhenotypeDrosophilaEye ProteinsArylalkylamine N-AcetyltransferaseTime FactorsTranscription, GeneticNeurosporaFlowersPhylogenyDrosophila melanogasterHypocotylSomitesBehavior, AnimalGenes, PlantLuciferasesDiapause, InsectTemperaturePhytochromeRetinaRod OpsinsSequence Homology, Amino AcidCyanobacteriaPromoter Regions, GeneticPhotobiologyBase SequenceNIH 3T3 CellsAnimal FinsPhytochrome BGene Expression ProfilingDNA-Binding ProteinsNeuronsMice, Inbred C57BLGene Knockdown TechniquesLuminescenceLateral Line SystemNuclear Receptor Subfamily 1, Group F, Member 1Chronobiology PhenomenaCasein Kinase IGene ExpressionNeuropeptidesGreen Fluorescent ProteinsReverse Transcriptase Polymerase Chain ReactionFeedbackSleep Disorders, Circadian Rhythm