FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term mitochondrial derivative ID (Ontology) GO:0016007 (Gene Ontology)
Definition The major and minor mitochondrial derivatives are the mitochondria of the sperm tail and derive by the unfolding of the Nebenkern during flagellum elongation.
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Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Genes (FBgn)GO_CELLULAR_COMPONENT
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Constructs
 mitochondrial derivative (all annotations which use CV term, excluding "NOT" statements)
     located_in | mitochondrial derivative       --
      --
     mitochondrial derivative | absent
      --
     mitochondrial derivative | adult stage | male
      --       --
     mitochondrial derivative | decreased number | spermatogenesis
      --       --
     mitochondrial derivative | fertilized egg stage
      --
     mitochondrial derivative | germline clone
      --       --
     mitochondrial derivative | heat sensitive
      --       --
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membrane-bounded organelle__
intracellular organelle_____|
                            intracellular membrane-bounded organelle
                             |__mitochondrial derivative  293 rec.
                                 |__major mitochondrial derivative 49 rec.
                                 |__minor mitochondrial derivative 15 rec.
                                 |__Nebenkern 213 rec.
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Is a intracellular membrane-bounded organelle
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