MyostatinInheritance PatternsFollistatinActivin Receptors, Type IIPedigreeMuscle, SkeletalTransforming Growth Factor betaGenes, RecessiveGenes, DominantHeredityExtrachromosomal InheritanceCrosses, GeneticMuscular AtrophyFollistatin-Related ProteinsHypertrophyMultifactorial InheritanceGenetic LinkagePhenotypeMuscle Fibers, SkeletalMuscle DevelopmentMyoblastsModels, GeneticMyoD ProteinAllelesChromosome MappingMutationGenotypeSatellite Cells, Skeletal Muscle