Ambystoma mexicanumRegenerationExtremitiesTurbellariaAmbystomaNotophthalmus viridescensNotophthalmusForelimbSalamandridaeEpithelial CellsAnimal FinsPlanariansGene Expression ProfilingEpitheliumTriturusGene ExpressionOligonucleotide Array Sequence AnalysisGene Expression RegulationReverse Transcriptase Polymerase Chain ReactionTailCadherinsAmputationUrodelaTranscription FactorsPleurodelesWilms TumorNerve TissueZebrafishIn Situ HybridizationAnaplasiaAmputation StumpsCell DedifferentiationAnimal StructuresPentosan Sulfuric PolyesterWound HealingGene Expression Regulation, DevelopmentalCell DifferentiationMorphogenesisGenes, HomeoboxMesodermZebrafish ProteinsEpidermisDermisCartilageAnimals, Genetically ModifiedFibroblast Growth FactorsTretinoinBody PatterningMSX1 Transcription FactorCellular MicroenvironmentHomeodomain ProteinsLimb BudsChoristomaDenervationXenopus ProteinsPAX7 Transcription FactorXenopus laevisHindlimbMolecular Sequence DataMultipotent Stem CellsTenascinEmbryo, NonmammalianLarvaCell ProliferationAmino Acid SequenceT-Box Domain ProteinsKidney NeoplasmsUreterHedgehog ProteinsStem CellsDNA, ComplementaryImmunohistochemistryHeadBromodeoxyuridineHelminth ProteinsModels, BiologicalCell TransplantationWnt ProteinsMusclesBone and BonesSignal TransductionBase SequenceExtracellular MatrixKidneyKeratinsbeta CateninMicroscopy, ElectronDNA PrimersReceptors, Fibroblast Growth FactorCell DivisionSequence AlignmentBlotting, NorthernTime FactorsSequence Homology, Amino AcidModels, AnimalCell Lineage