FB2026_03 , released September 17, 2026
CV Term Report
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Term adult midgut region R1 ID (Ontology) FBbt:00110890 (Fly Anatomy)
Definition Region of the adult midgut located in the thorax. It ends at a position that corresponds to an anatomical hub where the midgut, the crop, and the Malpighian tubules physically interact. It can be subdivided into 2 subregions: R1a, composed of flat enterocytes, and R1b composed of long folded enterocytes.[ FlyBase:FBrf0221749 FlyBase:FBrf0222542 ]
Also Known As"adult midgut A1 region" ; "adult midgut anterior 1 region"
CommentAdult midgut regions R1 and R2 correspond to the previously described anterior midgut (Buchon et al., 2013).
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Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 adult midgut region R1 (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 anterior midgut__|
                           adult midgut region R1  6 rec.
                            |__adult midgut region R1a
                            |__adult midgut region R1b
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Is a adult midgut region
Part of adult anterior midgut
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