MorphogenesisCaenorhabditis elegans ProteinsCaenorhabditis elegansEmbryonic DevelopmentEmbryo, NonmammalianGene Expression Regulation, DevelopmentalExtraembryonic MembranesEndodermEmbryo, MammalianYolk SacGastrulaAllantoisEctodermEmbryonic and Fetal DevelopmentMesodermTrophoblastsSerous MembraneIn Situ HybridizationPlacentaBlastocystBody PatterningChimeraCell DifferentiationCell LineageGerm LayersEmbryo LossChorionGATA6 Transcription FactorAmnionEmbryonic Stem CellsPregnancyHomeodomain ProteinsChick EmbryoEmbryonic InductionTranscription FactorsSignal TransductionBone Morphogenetic Protein 4Genes, LethalMutationBlastodermDosage Compensation, GeneticEpitheliumGene TargetingMolecular Sequence DataSOXF Transcription FactorsPhenotypeGenomic ImprintingVisceraBone Morphogenetic ProteinsZebrafishModels, BiologicalOviparityMice, TransgenicGerm CellsMice, KnockoutVitelline DuctZebrafish ProteinsStem CellsBase SequenceDrosophila ProteinsHyalinChorioallantoic MembraneX Chromosome InactivationMice, Mutant StrainsDrosophilaX ChromosomeRNA, MessengerMice, Inbred C57BLCell MovementPrimitive StreakDNA-Binding ProteinsAmino Acid SequenceCell PolarityUreterEpithelial CellsT-Box Domain ProteinsImmunohistochemistryHeartCells, CulturedOrganogenesisMice, Inbred ICRBlood VesselsGestational AgeOctamer Transcription Factor-3Pluripotent Stem CellsHMGB ProteinsFetal DeathDNA Primerst-Complex Genome RegionQuailGene ExpressionViviparity, NonmammalianCrosses, GeneticNodal ProteinNeovascularization, PhysiologicReverse Transcriptase Polymerase Chain ReactionGenes, HomeoboxCell LineGene DeletionMice, Inbred Strains