FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term myotube ID (Ontology) FBbt:00005812 (Fly Anatomy)
Definition Multinucleated muscle cell formed by several fusion events between fusion competent myoblasts and one founder cell. The size of a myotube is correlated to the number of fusion competent cells that fuse with a founder cell or developing myotube.[ FlyBase:FBrf0051585 FlyBase:FBrf0205186 FlyBase:FBrf0217289 ]
Also Known As "muscle fiber" ; "myofiber" ; "myofibril"
Comment In contrast to vertebrates, in Drosophila embryos and larva, each muscle is a single myotube (Maqbool and Jagla, 2007).
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Genes Insertions Constructs
 myotube (all annotations which use CV term, excluding "NOT" statements)
     myotube | adult stage
      --       --
     myotube | adult stage | progressive
      --       --
     myotube | decreased number | pupal stage
      --       --
     myotube | embryonic stage
      --       --       --
     myotube | larval stage
      --       --
     myotube | P-stage
      --
     myotube | pupal stage
      --       --
     myotube | pupal stage | somatic clone - tissue specific
      --       --
     myotube | second instar larval stage
      --       --
     myotube | third instar larval stage
      --
     myotube | wandering third instar larval stage
      --
      --
Spanning Tree (Parents/Children)
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muscle system__
somatic cell___|
               muscle cell
                |__myotube  135 rec.
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CL:0002372