FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term absent ID (Ontology) FBcv:0007049 (FlyBase CV)
Definition Anatomical structure that would be present in wild-type is not present.
Comment
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
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 Insertions Constructs
 abdominal ventral denticle belt | absent | embryonic stage | germline clone | maternal effect (all annotations which use CV term, excluding "NOT" statements)       2       --       --
     adult alary muscle cell | absent       2       --       2
     adult enteroendocrine cell | absent       2       --       2
     adult head | absent       6       --       5
     adult heart ventral longitudinal muscle cell | absent       3       --       3
     adult mushroom body alpha-lobe | absent       2       --       1
     adult mushroom body astrocyte-like glial cell | absent       1      1       --
     adult mushroom body beta-lobe | absent       2       --       1
     adult mushroom body gamma-lobe | absent       2       --       2
     adult mushroom body | absent       2       --       1
     air sac primordium | absent | larval stage       2       --       2
     antennal lobe glomerulus D | absent       1       --       --
     anterior crossvein | absent      10       --      10
     anterior dorsocentral bristle | absent       1      1       --
     anterior pupal spiracle | absent       3       --       2
     arista | absent       2       --       2
     asymmetrical body | absent | adult stage       2       --       2
     axon collateral | absent | adult stage       1       --       --
     axon collateral | absent | pupal stage       1       --       --
     axonemal central pair | absent       1       --       --
     axoneme | absent       1       --       --
     axoneme | absent | adult stage       2       --       --
     brain commissure | absent | embryonic stage       2       --       --
     bristle of mesothoracic tergum | absent       2       --       1
     centriole | absent | larval stage       1       --       --
     centriole | absent | male       1       --       --
     centrosome | absent | male       2       --       3
     cephalic furrow | absent | embryonic stage 6       7       --       4
     chaeta | absent       2       --       2
     ciliary membrane | absent | adult stage       1       --       --
     ciliary rootlet | absent       2       --       --
     ciliary transition zone | absent | adult stage       2       --       --
     cilium | absent | larval stage       2       --       --
     cyst cell of testis | absent       3       --       2
     cyst progenitor cell | absent       5       --       4
     cystic bulge | absent      12      1      9
     deep pseudopupil | absent       3       --       3
     dendritic tree | absent       1       --       --
     denticle | absent | embryonic stage       2       --       --
     dorsal appendage | absent       1       --       --
     dorsal longitudinal indirect flight muscle | P-stage | absent       5       --       4
     dorsocentral bristle | absent       3       --       1
     dorsocentral bristle | absent | somatic clone - tissue specific       1       --       --
     egg chamber | absent      20      2     18
     egg chamber | absent | somatic clone - tissue specific       1      1       --
     egg | absent      23      2     20
     elongation stage spermatid | absent      10      1      7
     embryonic large intestine | absent       1       --       --
     embryonic/larval frontal nerve | absent | embryonic stage       3       --       3
     embryonic/larval mushroom body | absent | embryonic stage       1       --       --
     epipharyngeal sclerite | absent | embryonic stage       1       --       --
     extracellular vesicle | absent | embryonic stage       2       --       --
     eye disc | absent | larval stage       2       --       1
     eye | absent      10       --       8
     eye | absent | adult stage       2       --       2
     eye | absent | pharate adult stage       4       --       4
     female fusome | absent       2       --       3
     female genital disc | absent       2      1       --
     female genitalia | absent       2      1       --
     female germline cell | absent      25      4     21
     female germline cell | absent | adult stage       3       --       4
     female germline stem cell | absent       2       --       2
     female germline stem cell | absent | germline clone       2       --       --
     germarium | absent       5      2      4
     haltere | absent       2       --       --
     hindgut boundary cell | absent       1       --       --
     hub cell | absent       6       --       4
     hypogynial tooth | absent       2      1       --
     imaginal disc | absent | larval stage       3       --       --
     individualization stage spermatid | absent       1       --       --
     interommatidial bristle | absent       3      2      1
     interommatidial bristle | absent | adult stage       4       --       4
     labrum | absent | embryonic stage       1       --       --
     lamina monopolar neuron L3 | absent | adult stage       2       --       2
     lamina wide-field 1 neuron | absent | larval stage       1       --       --
     lamina | absent | larval stage       6       --       5
     larval abdominal ganglion Leucokinin neuron | absent | first instar larval stage       2       --       1
     macrochaeta | absent       2       --       1
     main body follicle cell | absent       2       --       1
     male fusome | absent       2       --       2
     male genitalia | absent       1      1       --
     male genitalia | absent | maternal effect       2      2       --
     male germline cell | absent       3       --       3
     male germline cell | absent | adult stage       3       --       4
     male germline stem cell | absent       4       --       1
     male germline stem cell | absent | adult stage       2       --       2
     male germline stem cell | absent | heat sensitive       1       --       --
     mechanosensory chaeta | absent | pharate adult stage       3      3       --
     medial lobe of larval mushroom body | absent | somatic clone | third instar larval stage       1       --       --
     mesoderm | absent       1       --       --
     microchaeta | absent       2       --       1
     micropyle | absent       1       --       --
     microtubule | absent | adult stage       1       --       --
     mitochondrial crista | absent | oogenesis       2       --       2
     mitochondrial derivative | absent       2       --       2
     mitochondrion | P-stage | absent       3       --       3
     multivesicular body | absent | larval stage       1       --       --
     muscle cell | absent       2       --       2
     myofibril | absent | adult stage       2       --       2
     Nebenkern | absent       3       --       2
     ocellus | absent       1      1       --
     ocellus | absent | pharate adult stage       2      1       --
     onion stage spermatid | absent       3       --       3
     oocyte | absent      13      1     11
     outer dynein arm | absent | male       1       --       --
     ovarian sheath | absent       1      1       --
     ovariole | absent       5      2      4
     ovary | absent       4       --       4
     peritoneal sheath muscle cell | absent       1      1       --
     photoreceptor cell R7 | absent       1       --       --
     posterior crossvein | absent       4       --       4
     presumptive wing margin | absent | larval stage | somatic clone - tissue specific       3       --       1
     presumptive wing margin | P-stage | absent | somatic clone - tissue specific       3       --       1
     primary lobe of embryonic/larval lymph gland | absent | larval stage       1       --       --
     proboscis | absent       1      1       --
     proximal medullary amacrine neuron Pm1 | absent | larval stage       1       --       --
     ribosome | absent | adult stage       2       --       2
     scolopidial cilium | absent | adult stage       2       --       --
     scutellar bristle | absent       2       --       1
     secondary lobe of embryonic/larval lymph gland | absent | larval stage       1       --       --
     slit diaphragm | absent | larval stage       5       --       4
     sperm individualization complex | absent       4       --       4
     spermatid | absent       2       --       2
     spermatid | absent | germline clone       2       --       2
     spermatogonium | absent       2       --       --
     spermatozoon | absent      70      8     48
     spermatozoon | absent | decreased number       1      1       --
     stalk follicle cell | absent       1       --       --
     supraalar bristle | absent       2       --       --
     t-bar | absent | larval stage       1       --       --
     tarsal segment | absent | adult stage       2       --       2
     tarsus | absent       2       --       2
     trichome | absent | embryonic stage       2       --       --
     unguis | absent       2       --       1
     ventral denticle belt | absent | embryonic stage      14       --      11
     ventral denticle belt | absent | larval stage       1       --       --
     ventral furrow | absent       1       --       --
     vertical lobe of adult mushroom body | absent       1       --       --
     vesicle | absent | larval stage       2       --       1
     vibrissal bristle | absent | adult stage       2       --       2
     waste bag | absent      20      2     14
     waste bag | absent | germline clone       1      1       --
     wing blade | absent       3       --       3
     wing hair | absent       2       --       2
     wing hair | absent | adult stage | somatic clone       2       --       --
     wing hair | P-stage | absent | cell autonomous | somatic clone       1       --       --
     wing margin bristle | absent       2       --       2
     wing margin bristle | absent | somatic clone       3      2       --
     wing margin | absent       2       --       1
     wing margin | absent | somatic clone - tissue specific       3       --       1
     wing vein | absent       8       --       8
     wing | absent      14       --      10
     yolk granule | absent       5       --       5
Spanning Tree (Parents/Children)
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  phenotype qualifier
   |__structural qualifier
       |__absent
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PATO:0000462