PronephrosXenopus ProteinsEmbryo, NonmammalianZebrafishMesonephrosNephronsGene Expression Regulation, DevelopmentalXenopus laevisKidneyPAX2 Transcription FactorIn Situ HybridizationZebrafish ProteinsInterrenal GlandOrganogenesisXenopusEmbryonic StructuresLIM-Homeodomain ProteinsWT1 ProteinsMesodermMorphogenesisSomitesEmbryonic InductionKidney TubulesBody PatterningHomeodomain ProteinsCiliaTranscription FactorsActivinsAnimals, Genetically ModifiedHepatocyte Nuclear Factor 1-betaEctodermTretinoinKidney GlomerulusMolecular Sequence DataInhibinsAmino Acid SequenceWnt ProteinsCloning, MolecularPhenotypeSequence Homology, Amino Acid