SpermatogenesisTestisSpermatidsSpermatocytesSeminiferous TubulesSertoli CellsSpermatogoniaSpermatozoaInfertility, MaleSeminiferous EpitheliumSperm CountFertilityOligospermiaAzoospermiaBlood-Testis BarrierGerm CellsMeiosisTestosteroneContraceptive Agents, MaleLeydig CellsEpididymisCryptorchidismOrgan SizeSpermatogenesis-Blocking AgentsPachytene StageSperm MotilityMolecular Sequence DataFollicle Stimulating HormoneSexual MaturationMice, KnockoutAntispermatogenic AgentsGene Expression Regulation, DevelopmentalTesticular DiseasesChromosomes, Human, YProtaminesSperm TailRNA, MessengerSperm MaturationY ChromosomeBase SequenceAmino Acid SequenceSperm HeadSertoli Cell-Only SyndromeMeiotic Prophase IVaricoceleMice, Inbred C57BLAcrosomeMutationGene TargetingImmunohistochemistryGonadotropinsOogenesisSeminal VesiclesGametogenesisReverse Transcriptase Polymerase Chain ReactionLuteinizing HormoneMice, Mutant StrainsInhibinsSemenIn Situ HybridizationGenitalia, MaleSeminal Plasma ProteinsGene ExpressionMice, TransgenicHaploidyDisorders of Sex DevelopmentGene Expression RegulationNuclear ProteinsRNA-Binding ProteinsPhenotypeCyclic AMP Response Element ModulatorHypogonadismApoptosisAndrogensCell DifferentiationRats, Sprague-DawleyReproductionReceptors, FSHTight JunctionsSex ChromosomesTranscription FactorsGene DeletionDNA-Binding ProteinsProteinsAnguillaDrosophila ProteinsCyclin A1Organ SpecificitySemen AnalysisSex Chromosome Disorders of Sex DevelopmentCloning, MolecularMicroscopy, ElectronBlotting, WesternHomozygoteStem CellsFertility Agents, MaleSperm RetrievalLepidiumX ChromosomeSequence Homology, Amino Acid