FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult midgut region R3 ID (Ontology) FBbt:00110897 (Fly Anatomy)
Definition Region of the adult midgut that contains the copper cells. This region initiates a retrograde folding of the midgut, (from posterior to anterior), and it follows a ventral-dorsal axis. It can be subdivided into an anterior section containing the copper cells (R3ab) and a posterior one with large flat cells (R3c).[ FlyBase:FBrf0216495 FlyBase:FBrf0221749 ]
Also Known As "adult acid zone" ; "adult middle midgut"
Comment This adult midgut region corresponds to the previously described region called middle midgut (Buchon et al., 2013).
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      29
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      25
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 Alleles Insertions Constructs
 adult midgut region R3 (all annotations which use CV term, excluding "NOT" statements)      30      2     26
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gut section
 |__middle midgut________
 |__adult midgut region__|
                         adult midgut region R3  89 rec.
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