FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term amnioserosa ID (Ontology) FBbt:00000095 (Fly Anatomy)
Definition A squamous epithelial tissue that derives from the dorsal-most region of the cellular blastoderm and that covers the dorsal side of the embryo following germ-band retraction, prior to dorsal closure.[ FlyBase:FBrf0041814 FlyBase:FBrf0174479 FlyBase:FBrf0244630 FlyBase:FBrf0246683 ]
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     143
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      55
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      15
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      37
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 Genes Images Insertions Constructs
 amnioserosa (all annotations which use CV term, excluding "NOT" statements)     148    364     24     70     46
     amnioserosa | decreased number       2       --       --       2       --
     amnioserosa | dorsal closure stage       1       --       --       --       --
     amnioserosa | embryonic stage       2       --       --       1      1
     amnioserosa | germline clone       1       --       --       --       --
     amnioserosa | maternal effect       7       --       --       3       --
     amnioserosa | rescuable maternal effect       1       --       --       1       --
     amnioserosa | somatic clone       3       --       --       --       --
Spanning Tree (Parents/Children)
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anatomical structure
 |__extraembryonic structure____
epithelium                      |
 |__squamous epithelium_________|
ectodermal derivative           |
 |__dorsal ectoderm derivative__|
                                amnioserosa  656 rec.
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Is a extraembryonic structure
squamous epithelium
dorsal ectoderm derivative
Develops from amnioserosa primordium
Part of late extended germ band embryo
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Synonyms
Secondary IDs
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UBERON:0010302