Embryo, MammalianEmbryo, NonmammalianChick EmbryoEmbryo ImplantationBlastocystEmbryonic DevelopmentEmbryo LossEmbryonic and Fetal DevelopmentGene Expression Regulation, DevelopmentalFertilization in VitroCleavage Stage, OvumBlastomeresPregnancyZygoteEmbryo DispositionMorulaZebrafishCryopreservationGastrulaBody PatterningOocytesIn Situ HybridizationEmbryo ResearchMorphogenesisCulture TechniquesSingle Embryo TransferCloning, OrganismMesodermEctogenesisNuclear Transfer TechniquesEctodermPregnancy RateZebrafish ProteinsSperm Injections, IntracytoplasmicMolecular Sequence DataXenopus ProteinsHomeodomain ProteinsSeedsFetal ViabilityTranscription FactorsEndodermDrosophilaParthenogenesisEmbryonic InductionBlastodermRNA, MessengerFertilizationSea UrchinsDrosophila ProteinsTime FactorsBase SequencePreimplantation DiagnosisMicroinjectionsAnimals, Genetically ModifiedCell DifferentiationNotochordNervous SystemYolk SacAmino Acid SequenceXenopus laevisMutationSuperovulationXenopusChimeraPhenotypeSomitesIsradipineNeural CrestDrosophila melanogasterSignal TransductionMice, Inbred ICROvumPregnancy OutcomeParenteral NutritionCattleCulture MediaQuailCell NucleusDNA-Binding ProteinsUrochordataFallopian TubesTeratogensEmbryo Implantation, DelayedMice, Inbred StrainsGene ExpressionImmunohistochemistryGenes, LethalCell LineageGastrulationCoturnixVitrificationZona PellucidaEmbryologyUterusGerm LayersGestational AgeGenes, HomeoboxSpermatozoaGerm CellsMice, Inbred C57BL