DiencephalonMesencephalonMetencephalonOtx Transcription FactorsTelencephalonGene Expression Regulation, DevelopmentalProsencephalonFibroblast Growth Factor 8Brain Tissue TransplantationBrainReceptor, EphA8DopamineIn Situ HybridizationHomeodomain ProteinsSubstantia NigraTyrosine 3-MonooxygenaseZebrafish ProteinsChick EmbryoBody PatterningNeuronsRed NucleusNerve Tissue ProteinsRhombencephalonFetal Tissue TransplantationSuperior ColliculiZebrafishWnt1 ProteinOptic ChiasmBrain StemCentral Nervous SystemEmbryo, NonmammalianTranscription FactorsSubcommissural OrganAxonsFibroblast Growth FactorsThalamusNuclear Receptor Subfamily 4, Group A, Member 2Embryonic and Fetal DevelopmentNeural PathwaysImmunohistochemistryMamillary BodiesWnt ProteinsOxidopamineCerebellumNeural CrestPonsHedgehog ProteinsMice, TransgenicEmbryo, MammalianHydroxydopaminesCorpus StriatumMolecular Sequence DataPaired Box Transcription FactorsCoturnixCell DifferentiationTrans-ActivatorsStem CellsTectum MesencephaliParkinson DiseaseDopaminergic NeuronsHypothalamusRNA, MessengerSpinal CordHabenulaPituitary GlandTissue DistributionDNA-Binding ProteinsBase SequenceTime Factors