Activin ReceptorsActivin Receptors, Type IIActivinsActivin Receptors, Type IInhibinsInhibin-beta SubunitsFollistatinReceptors, Growth FactorSmad2 ProteinMyostatinMyositis OssificansReceptors, Transforming Growth Factor betaTransforming Growth Factor betaBone Morphogenetic ProteinsNodal ProteinSmad ProteinsBone Morphogenetic Protein Receptors, Type ISignal TransductionGrowth Differentiation FactorsRNA, MessengerMesodermSmad3 ProteinBone Morphogenetic Protein Receptors, Type IIProtein-Serine-Threonine KinasesSmad4 ProteinEmbryonic InductionGrowth SubstancesXenopus ProteinsGene Expression Regulation, DevelopmentalIn Situ HybridizationXenopusTrans-ActivatorsGlycoproteinsCell DifferentiationGene ExpressionMolecular Sequence DataGranulosa CellsEmbryo, NonmammalianOvaryDNA-Binding ProteinsReverse Transcriptase Polymerase Chain ReactionBody PatterningCell LineAmino Acid SequenceBase SequenceTacrolimus Binding Protein 1AFollicle Stimulating Hormone, beta SubunitProteoglycansPosterior Capsule of the LensImmunohistochemistryGoosecoid ProteinCells, CulturedSea BreamReceptors, Cell SurfaceMice, Inbred C57BL