Ambystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbMesodermSalamandridaeAnimal FinsPlanariansMorphogenesisGene Expression Regulation, DevelopmentalTriturusIn Situ HybridizationTailLimb BudsUreterMSX1 Transcription FactorOdontogenesisAmputationToothCell DifferentiationFibroblast Growth FactorsChick EmbryoHomeodomain ProteinsWilms TumorPleurodelesUrodelaNerve TissueHedgehog ProteinsEpitheliumZebrafishCartilageBody PatterningEmbryonic InductionTooth GermFibroblast Growth Factor 9Genes, HomeoboxBone Morphogenetic ProteinsBone Morphogenetic Protein 4EctodermFibroblast Growth Factor 10Organ Culture TechniquesPalateEmbryo, NonmammalianNeural CrestTenascinSea UrchinsTretinoinEmbryonic and Fetal DevelopmentAnaplasiaSignal TransductionWnt ProteinsZebrafish ProteinsKidneyT-Box Domain ProteinsTranscription FactorsAmputation StumpsMolecular Sequence DataImmunohistochemistryWound HealingCell DedifferentiationAnimal StructuresPentosan Sulfuric PolyesterUrogenital SystemOrganogenesisEpidermisEmbryo, MammalianSkullFibroblast Growth Factor 4QuailFibroblast Growth Factor 8DermisAnimals, Genetically ModifiedStem CellsHindlimbAmino Acid SequenceCell ProliferationXenopus ProteinsBranchial RegionNephronsCoturnixGene ExpressionBase SequenceMandibleTrans-ActivatorsBone Morphogenetic Protein 7Cell LineageHeadModels, BiologicalPAX9 Transcription FactorRNA, MessengerDNA, ComplementaryEpithelial CellsXenopus laevisExtracellular MatrixPAX2 Transcription FactorMice, Transgenic