BlastocystBlastulaEmbryonic DevelopmentEmbryo Culture TechniquesEmbryo ImplantationMorulaSea UrchinsEmbryo TransferBlastomeresGastrulaFertilization in VitroCleavage Stage, OvumBlastocyst Inner Cell MassEmbryo, NonmammalianEmbryonic and Fetal DevelopmentZygoteGene Expression Regulation, DevelopmentalEctodermPregnancyCryopreservationEmbryo, MammalianOocytesVitrificationXenopus ProteinsEmbryo Implantation, DelayedCloning, OrganismCulture TechniquesEndodermTrophoblastsNuclear Transfer TechniquesMesodermEmbryonic InductionXenopusEctogenesisParthenogenesisNodal Signaling LigandsXenopus laevisZona PellucidaFetal ViabilityOrganizers, EmbryonicZebrafishGoosecoid ProteinStrongylocentrotus purpuratusOvumUterusBody PatterningCulture MediaFertilizationCattleZebrafish ProteinsGerm LayersSperm Injections, IntracytoplasmicHemicentrotusPregnancy RateIn Situ HybridizationMicroinjectionsSuperovulationRNA, MessengerActivinsEchinodermataMorphogenesisEthylene GlycolTranscription Factor 3PleurodelesOogenesisFallopian TubesIn Vitro Oocyte Maturation TechniquesNodal ProteinChimeraT-Box Domain ProteinsCryoprotective AgentsMice, Inbred ICRMolecular Sequence DataTime FactorsSingle Embryo TransferHomeodomain ProteinsCell DifferentiationMice, Inbred StrainsEndometriumBase SequenceLive BirthPseudopregnancySOXF Transcription FactorsCell CountOctamer Transcription Factor-3Transcription FactorsFetal ProteinsCell NucleusBlastodermCell LineageCells, CulturedMicromanipulationInhibinsGastrulationEmbryonic Stem CellsPreimplantation DiagnosisCumulus CellsNotochordBenzoylarginine NitroanilideBone Morphogenetic Proteins