OocytesCell NucleusXenopus laevisOogenesisXenopusCoiled BodiesMicroinjectionsOvumCell NucleolusMeiosisTriturusCytoplasmNuclear EnvelopeMicromanipulationNucleoplasminsChromosomesDrosophila ProteinsOocyte DonationTranscription, GeneticMolecular Sequence DataBase SequenceChromatinTransforming Growth Factor alphaOocyte RetrievalRNA, Small NuclearDrosophilaNucleus AccumbensNuclear ProteinsTransforming Growth FactorsRNA, MessengerRNAThalamic NucleiInsect ProteinsSolitary NucleusIn Vitro Oocyte Maturation TechniquesGenesCell PolarityHistonesDrosophila melanogasterAmino Acid SequenceMutationCloning, MolecularCochlear NucleusRNA, RibosomalMicroscopy, ElectronMicrotubulesRaphe NucleiRNA Processing, Post-TranscriptionalMetaphaseActive Transport, Cell NucleusCerebellar NucleiSeptal NucleiArcuate NucleusCaudate NucleusFertilizationDNAParaventricular Hypothalamic NucleusBlastocystParthenogenesisCumulus CellsSperm-Ovum InteractionsOvaryPlasmidsEmbryonic DevelopmentSuprachiasmatic NucleusNucleic Acid ConformationCryopreservationTranscription FactorsRed NucleusBiological TransportSperm Injections, IntracytoplasmicTrigeminal NucleiEmbryo TransferSubthalamic NucleusSupraoptic NucleusSpermatozoaNuclear Transfer TechniquesZygoteMaturation-Promoting FactorZona PellucidaNeuronsCleavage Stage, OvumPregnancyEmbryo Culture TechniquesCells, CulturedRNA, ComplementaryTime FactorsRats, Sprague-DawleyEmbryo, MammalianOlivary NucleusEgg ProteinsFollicular FluidEmbryonic and Fetal DevelopmentOvulation InductionMicroscopy, FluorescenceTrigeminal Nucleus, SpinalCryoprotective AgentsMicroscopy, ConfocalImmunohistochemistryProto-Oncogene Proteins c-mos