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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:decreased skeletal muscle fiber size
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Accession:MP:0009400 term browser browse the term
Definition:decrease in the size of the large multinucleated cells that make up the skeletal muscles
Synonyms:exact_synonym: decreased skeletal muscle fibre size;   reduced skeletal muscle fiber size;   reduced skeletal muscle fibre size

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decreased skeletal muscle fiber diameter term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Dmd dystrophin IMP RGD PMID:25310701 PMID:25005781 RGD:12880034, RGD:11040981 NCBI chr  X:47,272,324...49,504,219
Ensembl chr  X:47,272,331...49,504,207
JBrowse link
G Dmdem1Ang dystrophin; TALEN-induced mutant1, Ang IMP RGD PMID:25310701 RGD:12880034
G Dmdem1Kykn dystrophin; CRISPR/Cas9 system induced mutant 1, Keitaro Yamanouchi IMP RGD PMID:25005781 RGD:11040981

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  mammalian phenotype 5372
    muscle phenotype 190
      abnormal muscle morphology 93
        abnormal muscle fiber morphology 15
          abnormal skeletal muscle fiber morphology 8
            abnormal skeletal muscle fiber size 8
              decreased skeletal muscle fiber size 5
                decreased skeletal muscle fiber diameter 5
                skeletal muscle fiber atrophy 0
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