MesodermNodal ProteinLeft-Right Determination FactorsBody PatterningSomitesGene Expression Regulation, DevelopmentalChick EmbryoCoturnixGrowth PlateZebrafishBone PlatesZebrafish ProteinsLimb BudsIn Situ HybridizationEctodermEmbryo, NonmammalianEmbryonic InductionQuailGrowth Differentiation Factor 1MorphogenesisSmegmamorphaHomeodomain ProteinsNotochordBone Morphogenetic ProteinsXenopus ProteinsExtremitiesGastrulaBone Morphogenetic Protein 4Tissue TransplantationEndodermAmyotrophic Lateral SclerosisPaired Box Transcription FactorsT-Box Domain ProteinsOrganizers, EmbryonicTranscription FactorsFibroblast Growth Factor 8Avian ProteinsHedgehog ProteinsGenes, HomeoboxHeartFibroblast Growth FactorsSignal TransductionTransforming Growth Factor betaPAX2 Transcription FactorLateral Line SystemNeural CrestMorpholinosMolecular Sequence DataVisceraXenopusTrans-ActivatorsEmbryonic and Fetal DevelopmentModels, BiologicalTretinoinAnimals, Genetically ModifiedEmbryonic DevelopmentForelimbTailCell LineageXenopus laevisCell DifferentiationNeural PlateMutationAmino Acid SequenceGATA4 Transcription FactorProteinsEmbryo, MammalianDNA-Binding ProteinsBiological EvolutionCulture TechniquesHypothalamic Area, LateralBase SequenceSequence Homology, Amino AcidLateral VentriclesWnt ProteinsIntercellular Signaling Peptides and ProteinsCell MovementPhenotypeTime FactorsMice, TransgenicDNA PrimersRNA, MessengerStem CellsGeniculate BodiesFracture Fixation, InternalImmunohistochemistryTissue DistributionNuclear ProteinsGene ExpressionCloning, MolecularDNA, ComplementaryTibiaNeuronsLateral Ligament, AnkleBone ScrewsMyocardiumMagnetic Resonance ImagingAgarPlant RootsCadaver