ChimeraEmbryo, MammalianEmbryo, NonmammalianChick EmbryoEmbryo ImplantationBlastocystEmbryonic DevelopmentRadiation ChimeraEmbryonic and Fetal DevelopmentGene Expression Regulation, DevelopmentalRecombinant Fusion ProteinsEmbryo LossFertilization in VitroBlastomeresMolecular Sequence DataCleavage Stage, OvumTransplantation ChimeraPregnancyMorulaAmino Acid SequenceEmbryo DispositionZebrafishZygoteOocytesGastrulaBody PatterningIn Situ HybridizationCryopreservationBase SequenceMorphogenesisMesodermCloning, OrganismCulture TechniquesEmbryo ResearchEctodermSingle Embryo TransferNuclear Transfer TechniquesEctogenesisZebrafish ProteinsBlastodermParthenogenesisQuailMutationTranscription FactorsPregnancy RateMutant Chimeric ProteinsHomeodomain ProteinsCell DifferentiationXenopus ProteinsEndodermCell LineXenopus laevisRNA, MessengerMice, Inbred C57BLSperm Injections, IntracytoplasmicMice, Inbred StrainsSequence Homology, Amino AcidPhenotypeSeedsCoturnixDrosophilaXenopusDrosophila ProteinsSignal TransductionFetal ViabilityEmbryonic InductionMicroinjectionsAnimals, Genetically ModifiedTime FactorsSea UrchinsGreen Fluorescent ProteinsYolk SacProtein Structure, TertiaryCloning, MolecularMosaicismFertilizationPreimplantation DiagnosisDNA-Binding ProteinsNervous SystemDNA PrimersGerm CellsNeural CrestNotochordSomitesCattleCell LineageDNA, ComplementaryGene ExpressionSuperovulationMice, Inbred ICRTransfectionGerm LayersEmbryologyMice, KnockoutDrosophila melanogasterCytoplasmCell NucleusGenes, LethalMice, TransgenicMicroscopy, Fluorescence