FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term epandrium ID (Ontology) FBbt:00004839 (Fly Anatomy)
Definition Horseshoe-shaped tergite which, dorsally, surrounds the male cerci. It contains about 30 epandrial bristles on each side. The left and right sides of the epandrium are connected by the subepandrial sclerite. The ventral part of each side of the epandrium is divided into an epandrial ventral lobe and an epandrial posterior lobe.[ FlyBase:FBrf0029539 FlyBase:FBrf0244105 ]
Also Known As "abdominal tergite 9" ; "genital arch"
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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      25
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       5
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 Images Insertions Constructs
 epandrium (all annotations which use CV term, excluding "NOT" statements)      25      7      4      5
     epandrium | ectopic       1       --       --       --
     epandrium | heat sensitive       2       --       --       --
     epandrium | male | somatic clone       1       --       1       --
     epandrium | somatic clone       3       --       --       1
Spanning Tree (Parents/Children)
Only view relationship: 
abdominal segment 9
 |__adult abdominal segment 9____
adult abdominal segment          |
 |__abdominal tergite____________|
adult telson                     |
 |__adult abdominal segment 9____|
sclerite                         |
 |__abdominal tergite____________|
adult external abdomen           |
 |__abdominal tergite____________|
genitalia                        |
 |__male genitalia_______________|
male terminalia                  |
 |__male genitalia_______________|
 |__periphallic sclerite_________|
dorsal ectoderm derivative       |
 |__abdominal tergite____________|
region of integument             |
 |__periphallic sclerite_________|
male-specific anatomical entity  |
 |__male genitalia_______________|
 |__periphallic sclerite_________|
adult terminal segment           |
 |__adult abdominal segment 9____|
                                 epandrium  64 rec.
                                  |__epandrial anterodorsal phragma
                                  |__epandrial bristle
                                  |   |__epandrial dorsal lobe bristle
                                  |   |__epandrial ventral lobe bristle
                                  |__epandrial dorsal lobe
                                  |   |__epandrial dorsal lobe bristle
                                  |__epandrial posterior lobe 9 rec.
                                  |__epandrial ventral lobe 31 rec.
                                      |__epandrial ventral lobe bristle
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Is a abdominal tergite
periphallic sclerite
Develops from presumptive epandrium
Part of adult abdominal segment 9
male genitalia
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Synonyms
Secondary IDs
hide External Crossreferences & Linkouts
https://www.ento.csiro.au/biology/drosophila/melanogaster.html?epandrium