Gene Expression Regulation, DevelopmentalIn Situ HybridizationEmbryo, NonmammalianZebrafishEmbryonic StructuresMolecular Sequence DataBody PatterningAmino Acid SequenceEmbryo, MammalianDNA, ComplementaryMesodermBase SequenceEmbryonic and Fetal DevelopmentNervous SystemGenes, HomeoboxSequence Homology, Amino AcidTranscription FactorsGene Expression ProfilingHomeodomain ProteinsRNA, MessengerXenopus ProteinsGene ExpressionFibroblast Growth Factor 9Cloning, MolecularZebrafish ProteinsDNA-Binding ProteinsDrosophilaTissue DistributionPhylogenyEmbryonic DevelopmentDrosophila ProteinsEctodermChordata, NonvertebrateGenes, InsectSequence AlignmentMultigene FamilyCentral Nervous SystemDrosophila melanogasterExtremitiesSomitesMorphogenesisGene Expression RegulationLac OperonReverse Transcriptase Polymerase Chain ReactionGastrulaOrgan SpecificityXenopusChick EmbryoTranscription, GeneticPhenotypeTrans-ActivatorsOligonucleotide Array Sequence AnalysisEmbryonic InductionImmunohistochemistryHigh Mobility Group ProteinsConserved SequenceInsect ProteinsGene LibraryCell DifferentiationPromoter Regions, GeneticSea UrchinsMice, TransgenicBlotting, NorthernDNA PrimersEvolution, MolecularRNAZinc FingersXenopus laevisMutationChromosome MappingGene Expression Regulation, PlantNuclear ProteinsTime FactorsSequence Analysis, DNAPolymerase Chain ReactionNerve Tissue ProteinsSequence Homology, Nucleic AcidBrainMice, Inbred StrainsSignal TransductionGenesMembrane ProteinsHeartProto-Oncogene ProteinsNucleic Acid HybridizationCluster AnalysisGenes, PlantPlant ProteinsProtein IsoformsTranscriptomeArabidopsisExpressed Sequence TagsGene Expression Regulation, NeoplasticMicroRNAsAlternative SplicingMice, Inbred C57BLGene Expression Regulation, EnzymologicTestisPlants, Genetically ModifiedArabidopsis Proteins