FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term abdominal segment 2 ID (Ontology) FBbt:00000023 (Fly Anatomy)
Definition Second most anterior segment of the abdomen.
Comment
Links to External Ontologies
Annotations
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      66
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       7
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       9
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
 abdominal segment 2 (all annotations which use CV term, excluding "NOT" statements)      66      1      7      9
     abdominal segment 2 | ectopic       5       --       --       5
     abdominal segment 2 | maternal effect       2       --       1       --
     abdominal segment 2 | maternal effect | heat sensitive       4       --       --       --
Spanning Tree (Parents/Children)
Only view relationship: 
  abdominal segment
   |__anterior abdominal segment
       |__abdominal segment 2  487 rec.
           |__adult abdominal segment 2 68 rec.
           |__embryonic abdominal segment 2 123 rec.
           |__larval abdominal segment 2 228 rec.
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Is a anterior abdominal segment
Part of
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Synonyms
  • "a2" RELATED
Secondary IDs
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