FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term abdominal segment 4 ID (Ontology) FBbt:00000025 (Fly Anatomy)
Definition Fourth most anterior segment of the abdomen.
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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
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Insertions Constructs
 abdominal segment 4 (all annotations which use CV term, excluding "NOT" statements)
     abdominal segment 4 | ectopic | somatic clone
      --       --
     abdominal segment 4 | male
      --       --
     abdominal segment 4 | maternal effect
      --
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  abdominal segment
   |__anterior abdominal segment
       |__abdominal segment 4  526 rec.
           |__abdominal 4 dorsal adult muscle precursor cell 6 rec.
           |__abdominal 4 dorsolateral adult muscle precursor cell
           |__abdominal 4 lateral adult muscle precursor cell 10 rec.
           |__abdominal 4 neuroblast NB3-5 1 rec.
           |__abdominal 4 neuroblast NB5-2 1 rec.
           |__abdominal 4 neuroblast NB5-3
           |__abdominal 4 ventral adult muscle precursor cell 9 rec.
           |__abdominal segment 4 anterior compartment
           |__abdominal segment 4 posterior compartment
           |__adult abdominal segment 4 127 rec.
           |   |__abdominal 4 lateral tergosternal muscle 122(+) 1 rec.
           |   |__abdominal 4 oblique dorsal muscle 125(+) 1 rec.
           |   |__abdominal 4 spiracular muscle 124(+)
           |   |__abdominal 4 temporary eclosion muscle DA1(+)
           |   |__abdominal 4 temporary eclosion muscle DA3(+)
           |   |__abdominal 4 temporary eclosion muscle SBM(+)
           |   |__abdominal 4 ventral muscle 123(+) 1 rec.
           |   |__abdominal sternite 4 20 rec.
           |   |__abdominal tergite 4 45 rec.
           |   |__adult abdominal dorsal tracheal branch 6 2 rec.
           |   |__adult abdominal segment 4 anterior compartment
           |   |__adult abdominal segment 4 posterior compartment
           |   |__adult abdominal spiracle 4 2 rec.
           |   |__adult dorsal oenocyte band 4
           |   |__adult tracheal transverse connective 5
           |   |__adult ventral oenocyte band 4
           |   |__integument of adult abdominal segment 4
           |__embryonic abdominal segment 4 97 rec.
           |   |__abdominal tracheal primordium 4(+) 2 rec.
           |   |__embryonic abdominal 4 neuromere 1 rec.
           |__larval abdominal segment 4 230 rec.
               |__abdominal 4 dorsal campaniform sensillum dc1
               |__abdominal 4 dorsal campaniform sensillum dc2
               |__abdominal 4 dorsal trichoid sensillum dh1
               |__abdominal 4 dorsal trichoid sensillum dh2
               |__abdominal 4 dorsal trichome
               |__abdominal 4 larval oenocyte group
               |__abdominal 4 lateral campaniform sensillum lc1 1 rec.
               |__abdominal 4 lateral monoscolopidial chordotonal organ lch1 5 rec.
               |__abdominal 4 lateral pentascolopidial chordotonal organ lch5 38 rec.
               |__abdominal 4 lateral trichoid sensillum lh1 1 rec.
               |__abdominal 4 lateral trichoid sensillum lh2 1 rec.
               |__abdominal 4 ventral campaniform sensillum vc1
               |__abdominal 4 ventral campaniform sensillum vc2
               |__abdominal 4 ventral campaniform sensillum vc3
               |__abdominal 4 ventral campaniform sensillum vc4a
               |__abdominal 4 ventral campaniform sensillum vc4b
               |__abdominal 4 ventral campaniform sensillum vc5
               |__abdominal 4 ventral denticle belt 94 rec.
               |__abdominal 4 ventral monoscolopidial chordotonal organ vch1 10 rec.
               |__abdominal 4 ventral monoscolopidial chordotonal organ vch2
               |__anterior dorsal histoblast nest abdominal 4 5 rec.
               |__embryonic/larval abdominal 4 intrasegmental apodeme 1
               |__embryonic/larval abdominal 4 intrasegmental apodeme 2
               |__hypodermal muscle of larval abdominal 4(+) 73 rec.
               |__larval abdominal 4 median nerve
               |__larval abdominal 4 neuromere(+) 6 rec.
               |__larval abdominal 4 transverse nerve
               |__non-functional larval spiracle of abdominal segment 4
               |__posterior dorsal histoblast nest abdominal 4 5 rec.
               |__small cell associated with anterior dorsal histoblasts abdominal 4
               |__spiracular histoblast nest abdominal 4 2 rec.
               |__ventral histoblast nest abdominal 4 2 rec.
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Is a anterior abdominal segment
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Synonyms
  • "a4" RELATED
Secondary IDs
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