FB2026_03 , released September 17, 2026
CV Term Report
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Term adult midgut region R5 ID (Ontology) FBbt:00110905 (Fly Anatomy)
Definition Region of the adult midgut that corresponds to an ascending segment of the midgut that joins the hindgut. It is composed of an anterior region containing enterocytes with a typical columnar morphology, containing lipid vesicles and a posterior region which contains fewer cells with a smoothed brush border.[ FlyBase:FBrf0221749 FlyBase:FBrf0222542 ]
Also Known As"adult midgut P4 region" ; "adult midgut posterior 4 region"
CommentAdult midgut regions R4 and R5 correspond to the previously described posterior midgut (Buchon et al., 2013).
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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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 adult midgut region R5 (all annotations which use CV term, excluding "NOT" statements)
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adult midgut
 |__adult midgut region_____
gut section                 |
 |__adult midgut region_____|
adult midgut region         |
 |__adult posterior midgut__|
                            adult midgut region R5  37 rec.
                             |__adult midgut region R5a
                             |__adult midgut region R5b
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Is a adult midgut region
Part of adult posterior midgut
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