VertebratesZebrafishMolecular Sequence DataEvolution, MolecularBiological EvolutionGene Expression Regulation, DevelopmentalAmino Acid SequenceChordata, NonvertebrateEmbryo, NonmammalianZebrafish ProteinsFishesLampreysBody PatterningBase SequenceReptilesHagfishesInvertebratesSequence Homology, Amino AcidSpecies SpecificitySequence AlignmentConserved SequenceIn Situ HybridizationGenomeGene DuplicationXenopus ProteinsFossilsSharksChickensAmphibiansChordataHomeodomain ProteinsMammalsOryziasCiona intestinalisPetromyzonTakifuguXenopusAnimals, Genetically ModifiedCloning, MolecularDrosophilaGenes, HomeoboxSequence Analysis, DNADrosophila ProteinsChick EmbryoSyntenyTranscription FactorsBirdsLizardsXenopus laevisUrochordataFish ProteinsTetraodontiformesMorphogenesisSignal TransductionDNA, ComplementaryModels, BiologicalPhotoreceptor Cells, VertebrateMesodermLarvaExtremitiesMutationRhombencephalonAvian ProteinsDrosophila melanogasterGastrulaSequence Homology, Nucleic AcidNervous SystemJawEctodermNeural CrestModels, GeneticRNA, MessengerTurtlesEmbryonic DevelopmentUnited StatesDNA-Binding ProteinsSkates (Fish)Protein Structure, TertiaryEmbryonic InductionTime FactorsGenomicsNerve Tissue ProteinsPaleontologyEyeWnt ProteinsDNA PrimersRetinaPhenotypeDNAInsect ProteinsUrodelaCentral Nervous SystemGoldfishRanidaeCaenorhabditis elegansGenetic VariationCell DifferentiationOpsinsAlligators and CrocodilesPhylogeny