Embryo, MammalianBlastocystEmbryonic DevelopmentEmbryo, NonmammalianEmbryonic and Fetal DevelopmentGene Expression Regulation, DevelopmentalZygoteChick EmbryoMammalsEmbryo ImplantationEmbryo Culture TechniquesBlastomeresCleavage Stage, OvumCulture TechniquesPregnancyMorulaEctodermBody PatterningMolecular Sequence DataEndodermTotipotent Stem CellsYolk SacMorphogenesisFibroblast Growth Factor 4Fertilization in VitroBlastocyst Inner Cell MassMesodermIn Situ HybridizationGerm LayersTranscription FactorsHomeodomain ProteinsOocytesMice, Inbred CBACell DifferentiationAmino Acid SequenceOctamer Transcription Factor-3Tissue SurvivalCell LineageBase SequenceTrophoblastsEmbryo LossEmbryonic Stem CellsSignal TransductionNeural CrestRNA, MessengerMice, Inbred ICRGenomic ImprintingMice, Inbred C57BLCattleDNA-Binding ProteinsGene ExpressionStem CellsModels, BiologicalPluripotent Stem CellsTime FactorsGestational AgeMice, TransgenicPhenotypeEmbryo DispositionCells, CulturedImmunohistochemistryMice, KnockoutCell LineEpigenesis, GeneticZebrafishSequence Homology, Amino AcidGastrulaCryopreservationCloning, MolecularMutationCell MovementCloning, OrganismZebrafish ProteinsDrosophila ProteinsEmbryo ResearchDrosophilaSingle Embryo TransferNuclear Transfer TechniquesDNA, ComplementaryEctogenesisXenopus ProteinsCricetinaeDNAPregnancy RateCell NucleusTranscription, GeneticAnimals, Genetically ModifiedTOR Serine-Threonine KinasesSequence AlignmentFertilizationXenopus laevisSpecies SpecificityXenopusSperm Injections, IntracytoplasmicMicroinjectionsProteinsDrosophila melanogasterSeedsParthenogenesisProtein Binding