FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term costal vein ID (Ontology) FBbt:00004755 (Fly Anatomy)
Definition Vein that follows the full length of the anterior edge of the wing blade (Stark et al., 1999; Blair, 2007). Its longest (distal) segment is contiguous with wing vein L1 (Blair, 2007).[ FlyBase:FBrf0107299 FlyBase:FBrf0202743 ]
Also Known As "costa" ; "marginal vein"
Comment The distal costa is sometimes also referred to as marginal vein or wing vein L1 (Blair, 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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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 costal vein (all annotations which use CV term, excluding "NOT" statements)
     costal vein | ectopic
      --       --
      --
     costal vein | somatic clone
      --       --
      --
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  wing vein
   |__longitudinal vein
       |__costal vein  65 rec.
           |__costal nerve 2 rec.
           |__distal costal vein 10 rec.
           |__medial costal vein 17 rec.
           |__proximal costal bract
           |__proximal costal vein 8 rec.
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Is a longitudinal vein
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?C