FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term decreased fecundity ID (Ontology) FBcv:0006002 (FlyBase CV)
Definition Phenotype that is a decrease in the number of gametes produced.
Also Known As "reduced fecundity"
Comment
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Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPIC_CLASS     489
Constructs (FBtp)  PHENOTYPIC_CLASS     195
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 Constructs
 decreased fecundity (all annotations which use CV term, excluding "NOT" statements)     489    195
     decreased fecundity | conditional       1       --
     decreased fecundity | dominant | female       1       --
     decreased fecundity | dominant | male       1       --
     decreased fecundity | female     216     82
     decreased fecundity | female limited      11      3
     decreased fecundity | female | conditional       4      2
     decreased fecundity | female | germline clone       7       --
     decreased fecundity | female | heat sensitive       9      9
     decreased fecundity | female | nutrition conditional       1       --
     decreased fecundity | female | progressive       5       --
     decreased fecundity | female | progressive | recessive       1       --
     decreased fecundity | female | recessive      20       --
     decreased fecundity | female | recessive | heat sensitive       1       --
     decreased fecundity | female | RU486 conditional       5      5
     decreased fecundity | female | somatic clone - tissue specific       2      2
     decreased fecundity | germline clone       3       --
     decreased fecundity | male      54     18
     decreased fecundity | male limited       2       --
     decreased fecundity | male | progressive       2       --
     decreased fecundity | male | recessive       3       --
     decreased fecundity | mated female       4       --
     decreased fecundity | maternal effect       2       --
     decreased fecundity | nutrition conditional       3      1
     decreased fecundity | progressive      13     13
     decreased fecundity | recessive       9      1
Spanning Tree (Parents/Children)
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  phenotypic class
   |__phenotype
       |__decreased fecundity  684 rec.
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Synonyms
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