Muscular Dystrophy, FacioscapulohumeralMuscular DystrophiesChromosomes, Human, Pair 4Muscular Dystrophy, DuchenneChromosomes, Human, Pair 10CostameresTandem Repeat SequencesMyoblastsMuscular Dystrophy, AnimalPedigreeMyotonic DystrophyMuscle DevelopmentHomeodomain ProteinsDystrophinMuscle, SkeletalRepetitive Sequences, Nucleic AcidTelomereMuscular Dystrophies, Limb-GirdleGenetic LinkageMuscle Fibers, SkeletalGenetic MarkersChromosome MappingMice, Inbred mdxMuscular Dystrophy, Emery-DreifussPhenotypeSarcoglycansScapulaShoulder