FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term adult midgut region R2 ID (Ontology) FBbt:00110893 (Fly Anatomy)
Definition Region of the adult midgut located in the abdomen that is dorsally located and that falls back ventrally at the posterior part. It can be divided into 3 subregions, based on histology and gene expression. It is composed of enterocytes with a typical columnar morphology.[ FlyBase:FBrf0221749 FlyBase:FBrf0222542 ]
CommentAdult midgut regions R1 and R2 correspond to the previously described anterior midgut (Buchon et al., 2013).
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 adult midgut region R2 (all annotations which use CV term, excluding "NOT" statements)
     adult midgut region R2 | male
     adult midgut region R2 | nutrition conditional
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adult midgut
 |__adult midgut region____
gut section                |
 |__adult midgut region____|
adult midgut region        |
 |__adult anterior midgut__|
                           adult midgut region R2  18 rec.
                            |__adult class III enteroendocrine cell
                            |__adult midgut region R2a
                            |__adult midgut region R2b
                            |__adult midgut region R2c
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Is a adult midgut region
Part of adult anterior midgut
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