FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term partially lethal ID (Ontology) FBcv:0002015 (FlyBase CV)
Definition A phenotype of a population that is the death of some significant proportion of animals in that population prior to becoming a mature adult, where mature is defined as after adult stage A3 (FBdv:00006012).
Comment
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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)  PHENOTYPIC_CLASS    2189
Insertions (FBti)  LETHALITY     240
Constructs (FBtp)  PHENOTYPIC_CLASS    1153
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
 partially lethal (all annotations which use CV term, excluding "NOT" statements)    2189    240   1153
     partially lethal | chemical conditional      11       --       2
     partially lethal | cold sensitive       9       --       2
     partially lethal | conditional      11       --       6
     partially lethal | dominant       2      1       --
     partially lethal | dominant | female       1       --       1
     partially lethal | dominant | heat sensitive       3       --       --
     partially lethal | dominant | paternal effect       1      1       --
     partially lethal | female      48      8      4
     partially lethal | female limited      15       --      14
     partially lethal | female limited | cold sensitive      13       --      12
     partially lethal | female | heat sensitive       1       --       --
     partially lethal | female | recessive       7      2       --
     partially lethal | germline clone | maternal effect       1       --       --
     partially lethal | heat sensitive      47       --      23
     partially lethal | male     110      5     24
     partially lethal | male limited      36      1     36
     partially lethal | male limited | cold sensitive      27       --      27
     partially lethal | male | heat sensitive       2       --       2
     partially lethal | male | recessive       4       --       --
     partially lethal | maternal effect      19      4      5
     partially lethal | maternal effect | conditional       2       --       --
     partially lethal | maternal effect | heat sensitive       1       --       --
     partially lethal | maternal effect | recessive       2       --       --
     partially lethal | maternal effect | temperature conditional       1       --       --
     partially lethal | non-rescuable maternal effect | recessive | heat sensitive       1       --       --
     partially lethal | nutrition conditional       4       --       1
     partially lethal | parental effect       3       --       --
     partially lethal | paternal effect       2       --       --
     partially lethal | recessive     121     30      1
     partially lethal | recessive | conditional       1       --       --
     partially lethal | recessive | heat sensitive       4       --       --
     partially lethal | recessive | rescuable maternal effect       3      1       --
     partially lethal | rescuable maternal effect       4      1       --
     partially lethal | semidominant       2       --       --
     partially lethal | somatic clone       --       2       --
     partially lethal | somatic clone | conditional       2       --       --
     partially lethal | temperature conditional       4       --       1
Spanning Tree (Parents/Children)
Only view relationship:
  increased mortality
   |__increased mortality during development
       |__partially lethal  11259 rec.
           |__partially lethal - majority die 7576 rec.
           |__partially lethal - majority live 1034 rec.
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