FB2024_03 , released June 25, 2024
FB2024_03 , released June 25, 2024
CV Term Report
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General Information
Term dorsal appendage ID (Ontology) FBbt:00000046 (Fly Anatomy)
Definition Paired appendage of the eggshell, located on the anterior-dorsal side of the egg, just posterior to the operculum. Functions as a respiratory structure. The dorsal appendages are formed during the final stages of oogenesis, when dorsal appendage forming follicle cells form paired tubular structures and secrete chorion proteins into the tube lumens to create the dorsal appendages. During eggshell maturation the dorsal appendage forming cells slough off, revealing the chorionic dorsal appendages inside.[ FlyBase:FBrf0064777 FlyBase:FBrf0174518 ]
Also Known As "chorionic appendage"
Comment Note that dorsal appendage structure varies considerably between Drosophilid species.
Links to Extrernal Ontologies
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     752
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       5
Insertions (FBti)  PHENOTYPE_MANIFEST_IN     120
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN     166
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
 dorsal appendage (all annotations which use CV term, excluding "NOT" statements)     752      4      3    125    166
     dorsal appendage | cell non-autonomous | ectopic | somatic clone       2       --       --       --       2
     dorsal appendage | cold sensitive       3       --       --       --       --
     dorsal appendage | decreased number | germline clone       1       --       --       --       --
     dorsal appendage | dorsal | somatic clone       1       --       --       --       --
     dorsal appendage | drug conditional       5       --       --       4      1
     dorsal appendage | ectopic      18       --       --       2      8
     dorsal appendage | ectopic | cold sensitive       4       --       --       --       4
     dorsal appendage | ectopic | heat sensitive       2       --       --       --       2
     dorsal appendage | ectopic | somatic clone       2       --       --       --       2
     dorsal appendage | egg stage       2       --       --       --       --
     dorsal appendage | embryonic stage 12       2       --       --       1       --
     dorsal appendage | embryonic stage | maternal effect       2       --       --       --       --
     dorsal appendage | germline clone      67       --       --      13      1
     dorsal appendage | germline clone | increased number       3       --       --       --       --
     dorsal appendage | germline clone | maternal effect      27       --       --       3       --
     dorsal appendage | germline clone | non-rescuable maternal effect       4       --       --       --       --
     dorsal appendage | heat sensitive      10       --       --       --       5
     dorsal appendage | increased number       2       --       --       --       1
     dorsal appendage | maternal effect     104       --       --      24     17
     dorsal appendage | maternal effect | heat sensitive       2       --       --       --       2
     dorsal appendage | maternal effect | somatic clone      24       --       --       8       --
     dorsal appendage | non-rescuable maternal effect       2       --       --       --       1
     dorsal appendage | oogenesis       2       --       --       --       --
     dorsal appendage | oogenesis stage S14       4       --       --       --       3
     dorsal appendage | somatic clone      29       --       --       6      7
     dorsal appendage | somatic clone | ventral       1       --       --       --       --
Spanning Tree (Parents/Children)
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chorion_________________________
acellular anatomical structure__|
                                chorionic specialization
                                 |__dorsal appendage  1050 rec.
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Is a chorionic specialization
Develops from dorsal appendage forming follicle cell
Part of
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UBERON:6000046