Chick EmbryoEmbryo, MammalianEmbryo, NonmammalianEmbryo ImplantationChickensGene Expression Regulation, DevelopmentalEmbryonic DevelopmentBlastocystAllantoisMesodermCulture TechniquesMorphogenesisQuailIn Situ HybridizationEmbryonic and Fetal DevelopmentGastrulaEctodermAvian ProteinsChorionChorioallantoic MembraneCartilageEmbryo LossTime FactorsBlastodermEmbryonic InductionCleavage Stage, OvumCoturnixBody PatterningFertilization in VitroSomitesCells, CulturedNotochordNeural CrestPregnancyBlastomeresMolecular Sequence DataCell DifferentiationMicroscopy, ElectronRNA, MessengerNervous SystemHomeodomain ProteinsLathyrismRhombencephalonExtraembryonic MembranesCulture MediaEndodermKineticsChimeraZebrafishZygoteEmbryo DispositionMusclesMicroscopy, Electron, ScanningHeartMorulaAmino Acid SequenceTranscription FactorsBase SequenceCryopreservationLimb BudsExtremitiesNeural TubeYolk SacOocytesWingFibroblast Growth Factor 8Bursa of FabriciusElectroporationFibroblast Growth FactorsZebrafish ProteinsLiverOrganizers, EmbryonicDicarbethoxydihydrocollidineBone Morphogenetic ProteinsImmunohistochemistryFibroblastsAvian Sarcoma VirusesTemperatureCattleCell DivisionCell MovementSignal TransductionMesonephrosTissue TransplantationCollagenMolecular WeightSpinal CordEgg ShellHedgehog ProteinsOrgan Culture TechniquesXenopus Proteins5-Aminolevulinate SynthetaseTritiumProteinsCentral Nervous SystemCell LineAminopropionitrileEmbryo ResearchDNAAllylisopropylacetamide