FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term stomodeal invagination ID (Ontology) FBbt:00005326 (Fly Anatomy)
Definition Infolding of the anteroventral embryo that arises during stage 10 (Campos-Ortega and Hartenstein, 1997). Its formation begins when cells surrounding the stomodeal anlage, which consists of a plate of tall cylindrical cells just prior to invagination, divide synchronously (Campos-Ortega and Hartenstein, 1997). The invaginated cells divide immediately afterwards, forming a monolayered epithelium (Campos-Ortega and Hartenstein, 1997). It is initially oriented perpendicular to the horizontal plane, but progressively bends towards the ventral plane (Campos-Ortega and Hartenstein, 1997). It grows caudally by cell divisions and incorporation of neighboring ectodermal cells (Campos-Ortega and Hartenstein, 1997).[ FlyBase:FBrf0089570 ]
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      13
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 stomodeal invagination (all annotations which use CV term, excluding "NOT" statements)      13     15      8      3      2
     stomodeal invagination | germline clone       3       --       --       1       --
Spanning Tree (Parents/Children)
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  anatomical structure
   |__multicellular structure
       |__stomodeal invagination  148 rec.
           |__early stomodeal invagination 93 rec.
           |__late stomodeal invagination 43 rec.
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Is a multicellular structure
Part of extended germ band embryo
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