FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term crossvein ID (Ontology) FBbt:00004765 (Fly Anatomy)
Definition A short wing vein that runs anterior-posterior, joining two longitudinal wing veins (Stark et al., 1999). It lacks underlying tracheae and its formation requires a different set of genes to longitudinal veins (Stark et al., 1999).[ FlyBase:FBrf0107299 ]
Also Known As "cross-vein"
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Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     254
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      24
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      94
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 crossvein (all annotations which use CV term, excluding "NOT" statements)     254      7     27     95
     crossvein | adult stage       4       --       2      2
     crossvein | cell non-autonomous | ectopic       2       --       --       1
     crossvein | cell non-autonomous | somatic clone       1       --       --       --
     crossvein | decreased number | ectopic       7       --       --       6
     crossvein | ectopic      39       --       3     15
     crossvein | ectopic | somatic clone       1       --       1       --
     crossvein | heat sensitive       4       --       --       3
     crossvein | increased number      14       --       --       8
     crossvein | maternal effect       2       --       2       --
     crossvein | somatic clone       6       --       --       --
Spanning Tree (Parents/Children)
Only view relationship:
  cuticular specialization
   |__wing vein
       |__crossvein  1333 rec.
           |__anterior crossvein 587 rec.
           |__humeral crossvein 8 rec.
           |__posterior crossvein 611 rec.
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