EctodermSea UrchinsEndodermEmbryo, NonmammalianGene Expression Regulation, DevelopmentalMolecular Sequence DataBase SequenceEmbryonic InductionMesodermGastrulaSOXF Transcription FactorsBody PatterningGerm LayersIn Situ HybridizationMorphogenesisXenopus ProteinsHomeodomain ProteinsCell DifferentiationNodal ProteinChick EmbryoBone Morphogenetic ProteinsNervous SystemBone Morphogenetic Protein 4VisceraTranscription FactorsGATA6 Transcription FactorZebrafish ProteinsCell LineageGastrulationBlastulaDigestive SystemEmbryo, MammalianNotochordEmbryonic Stem CellsNeural CrestFibroblast Growth FactorsHepatocyte Nuclear Factor 3-betaGATA5 Transcription FactorEmbryonic StructuresOtx Transcription FactorsXenopusEmbryonic and Fetal DevelopmentActivinsEmbryonic DevelopmentHMGB ProteinsSignal TransductionBranchial RegionSOX Transcription FactorsXenopus laevisYolk SacZebrafishQuailBlastocystChimeraFibroblast Growth Factor 8High Mobility Group ProteinsGenes, HomeoboxWnt ProteinsFetal ProteinsTissue TransplantationT-Box Domain ProteinsNeural PlateGATA Transcription FactorsFibroblast Growth Factor 4HeadTrans-ActivatorsDNA-Binding ProteinsGATA4 Transcription FactorHedgehog ProteinsExtremitiesCoturnixOrganizers, EmbryonicTeratomaSOXB1 Transcription FactorsTretinoinPaired Box Transcription FactorsStrongylocentrotus purpuratusModels, BiologicalLimb BudsBlastodermSomitesStem CellsLeft-Right Determination FactorsUrochordataRNA, MessengerProteinsAmino Acid SequenceEmbryoid BodiesOrganogenesisBlastomeresTransforming Growth Factor betaGoosecoid ProteinCentral Nervous SystemLens, CrystallineChordata, NonvertebrateDrosophilaWnt3 ProteinPharynxExtraembryonic Membranes