ActivinsInhibinsActivin ReceptorsInhibin-beta SubunitsFollistatinActivin Receptors, Type IIActivin Receptors, Type IFollicle Stimulating HormoneFollicle Stimulating Hormone, beta SubunitSmad2 ProteinReceptors, Growth FactorGonadotrophsMyostatinZona ReticularisOvaryTransforming Growth Factor betaTestisLuteinizing HormoneBone Morphogenetic ProteinsProstatic Secretory ProteinsReceptors, Transforming Growth Factor betaOvarian FollicleGrowth SubstancesSignal TransductionGlycoproteinsRNA, MessengerMesodermFollicular FluidFallopian TubesEstradiolGranulosa CellsImmunohistochemistryFollicular PhaseGonadotropinsSertoli CellsTestosteroneProgesteroneGene ExpressionCell DifferentiationCells, CulturedMolecular Sequence DataGonadotropins, PituitaryReverse Transcriptase Polymerase Chain ReactionGonadal HormonesOvulationPituitary GlandNodal ProteinGranulosa Cell TumorGoosecoid ProteinAnti-Mullerian HormoneTheca CellsChorionic GonadotropinSmad3 ProteinGene Expression RegulationSheepRadioimmunoassayAmino Acid SequenceFollistatin-Related ProteinsGonadotropin-Releasing Hormone