Mice, TransgenicAnimals, Genetically ModifiedEmbryo, NonmammalianEmbryo, MammalianGene Expression Regulation, DevelopmentalTransgenesChick EmbryoZebrafishEnhancer Elements, GeneticHomeodomain ProteinsEmbryonic DevelopmentEmbryonic and Fetal DevelopmentGreen Fluorescent ProteinsIn Situ HybridizationZebrafish ProteinsTranscription FactorsPromoter Regions, GeneticEmbryo ImplantationGenes, ReporterLac OperonBase SequenceMorphogenesisMolecular Sequence DataDrosophila ProteinsBody PatterningBlastocystGenes, HomeoboxLuminescent ProteinsDrosophilaEctodermDNA-Binding ProteinsMyogenic Regulatory Factor 5beta-GalactosidasePlants, Genetically ModifiedRegulatory Sequences, Nucleic AcidMesodermGene ExpressionRats, TransgenicMicroinjectionsPhenotypeRNA, MessengerBasic Helix-Loop-Helix Transcription FactorsEmbryo LossDNA PrimersGene Expression RegulationRecombinant Fusion ProteinsMutationCell DifferentiationXenopus laevisMice, Inbred C57BLFertilization in VitroSignal TransductionTranscription, GeneticTrans-ActivatorsCleavage Stage, OvumNuclear ProteinsPregnancyBlastomeresRepressor ProteinsZygoteEmbryo DispositionMorulaDisease Models, AnimalBinding SitesCryopreservationGastrulaOocytesSeedsCloning, OrganismTobaccoCulture TechniquesNuclear Transfer TechniquesEmbryo ResearchSingle Embryo TransferImmunohistochemistryAmino Acid SequenceGene Expression Regulation, PlantEctogenesisMice, KnockoutTime FactorsOrgan SpecificityCrosses, GeneticPregnancy RatePlant ProteinsXenopus ProteinsChimeraMice, Inbred StrainsReverse Transcriptase Polymerase Chain ReactionMice, Inbred CBAPlants, ToxicSperm Injections, IntracytoplasmicEndodermCloning, MolecularFetal ViabilityArabidopsisParthenogenesisEmbryonic InductionBlastodermMice, Inbred ICRFertilization