Primitive StreakGastrulaMesodermEndodermChick EmbryoBlastodermAngioid StreaksMaize streak virusBody PatterningGastrulationFetal ProteinsGerm LayersGene Expression Regulation, DevelopmentalEmbryonic InductionNodal ProteinNeuroectodermal Tumors, PrimitiveIn Situ HybridizationEmbryonic and Fetal DevelopmentNotochordEctodermMorphogenesisAllantoisQuailChimeraAvian ProteinsHepatocyte Nuclear Factor 3-betaCarbocyaninesOrganizers, EmbryonicTailCoturnixEmbryo, MammalianT-Box Domain ProteinsSomitesHomeodomain ProteinsCell MovementNeuroectodermal Tumors, Primitive, PeripheralNervous SystemCell DifferentiationCell LineageWnt3 ProteinGrowth Differentiation Factor 1Left-Right Determination FactorsGoosecoid ProteinPotyviridaeOtx Transcription FactorsWnt ProteinsEmbryonic DevelopmentHeadTranscription FactorsNeural PlateActivinsFibroblast Growth FactorsGenes, HomeoboxBone Morphogenetic ProteinsTransforming Growth Factor betaBone Morphogenetic Protein 4Signal TransductionHematopoietic Stem CellsMice, Mutant StrainsEmbryonic Stem CellsStem CellsEmbryo, NonmammalianMolecular Sequence DataCulture TechniquesMice, Inbred ICRFibroblast Growth Factor 8Xenopus ProteinsGlycoproteinsCentral Nervous SystemGene ExpressionNeuroectodermal TumorsTime FactorsBlastocystImmunohistochemistryFibroblast Growth Factor 4DNA-Binding ProteinsBase SequenceHomozygoteAmnionVisceraMicrosurgeryAmino Acid SequenceArteriosclerosisGerm CellsLac OperonTrans-ActivatorsGene TargetingCell PolarityHematopoiesisMice, TransgenicMice, Inbred C57BLDigestive SystemCulture Media, Serum-FreeModels, BiologicalYolk SacHeartMice, Inbred StrainsRNA, MessengerZebrafish ProteinsProsencephalon