Embryo, MammalianEmbryo, NonmammalianChick EmbryoEmbryo ImplantationBlastocystEmbryonic DevelopmentRNA, GuideEmbryo LossGene Expression Regulation, DevelopmentalEmbryonic and Fetal DevelopmentFertilization in VitroCleavage Stage, OvumBlastomeresPregnancyEmbryo DispositionMorulaZygoteZebrafishCryopreservationGastrulaBody PatterningIn Situ HybridizationOocytesMorphogenesisEmbryo ResearchSingle Embryo TransferCulture TechniquesCloning, OrganismMesodermEctogenesisNuclear Transfer TechniquesMolecular Sequence DataEctodermZebrafish ProteinsPregnancy RateXenopus ProteinsHomeodomain ProteinsSperm Injections, IntracytoplasmicBase SequenceSeedsTranscription FactorsFetal ViabilityEndodermDrosophilaRNA, MessengerParthenogenesisEmbryonic InductionDrosophila ProteinsTime FactorsBlastodermSea UrchinsAnimals, Genetically ModifiedFertilizationPreimplantation DiagnosisMicroinjectionsCell DifferentiationMutationNervous SystemAmino Acid SequenceNotochordXenopus laevisXenopusPhenotypeYolk SacChimeraSuperovulationSignal TransductionNeural CrestSomitesDrosophila melanogasterPregnancy OutcomeOvumCulture MediaCattleMice, Inbred ICRQuailModels, BiologicalDNA-Binding ProteinsCell NucleusUrochordataFallopian TubesTeratogensEmbryo Implantation, DelayedCell LineageGene ExpressionMice, Inbred StrainsGenes, LethalGastrulationCoturnixGerm CellsVitrificationImmunohistochemistryZona PellucidaEmbryologyGestational AgeGerm LayersMice, Inbred C57BLGenes, HomeoboxCloning, MolecularUterus