Ambystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbSalamandridaeAnimal FinsPlanariansTriturusTailAmputationUrodelaPleurodelesWilms TumorIn Situ HybridizationNerve TissueZebrafishGene Expression Regulation, DevelopmentalMolecular Sequence DataAnaplasiaAmino Acid SequenceMorphogenesisMardivirusMesodermAmputation StumpsCell DifferentiationCell DedifferentiationAnimal StructuresPentosan Sulfuric PolyesterWound HealingBody PatterningCartilageZebrafish ProteinsGenes, HomeoboxBase SequenceLimb BudsEmbryo, NonmammalianXenopus ProteinsEpidermisDermisXenopus laevisAnimals, Genetically ModifiedTretinoinFibroblast Growth FactorsDucksMSX1 Transcription FactorHomeodomain ProteinsCellular MicroenvironmentChoristomaDenervationPAX7 Transcription FactorHindlimbModels, BiologicalMultipotent Stem CellsAlphaherpesvirinaeTenascinDNA, ComplementaryLarvaCloning, MolecularMusclesCell ProliferationStem CellsSequence Homology, Amino AcidT-Box Domain ProteinsImmunohistochemistryKidney NeoplasmsSignal TransductionTranscription FactorsRNA, MessengerUreterGene Expression RegulationGene ExpressionSequence AlignmentHedgehog ProteinsTime FactorsHeadBromodeoxyuridine