FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
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"
Comment Adult midgut regions R1 and R2 correspond to the previously described anterior midgut (Buchon et al., 2013).
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS
    Results list data from multiple species. Click on a button above and use the 'Filter by species' options on the resulting HitList to retrieve species-specific data.
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Constructs
 adult midgut region R1 (all annotations which use CV term, excluding "NOT" statements)       2      4
Spanning Tree (Parents/Children)
Only view relationship:
  gut section
   |__adult midgut region
       |__adult midgut region R1  6 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a adult midgut region
Part of adult anterior midgut
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts