FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term sterile ID (Ontology) FBcv:0000364 (FlyBase CV)
Definition A phenotype that is the inability to produce fertilized eggs as a result of mating.
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     456
Insertions (FBti)  STERILITY      95
Constructs (FBtp)  PHENOTYPIC_CLASS      78
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
 sterile (all annotations which use CV term, excluding "NOT" statements)     456     95     78
     sterile | dominant       2       --       2
     sterile | dominant | maternal effect       1      1       --
     sterile | female       5      2      3
     sterile | female | germline clone       2       --       --
     sterile | female | germline clone | recessive       1       --       --
     sterile | female | recessive       1       --       --
     sterile | germline clone       1       --       --
     sterile | germline clone | maternal effect       3       --       --
     sterile | heat sensitive       2       --       --
     sterile | male       5      1      1
     sterile | male limited       3       --       2
     sterile | maternal effect       2      2       --
     sterile | recessive      89     23      4
     sterile | recessive | heat sensitive       2       --       --
     sterile | semidominant       1       --       --
     sterile | temperature conditional       3       --       1
Spanning Tree (Parents/Children)
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  phenotypic class
   |__phenotype
       |__sterile  7204 rec.
           |__female sterile 4635 rec.
           |   |__female sterile germline-dependent 72 rec.
           |   |__female sterile soma-dependent 24 rec.
           |__male sterile 2623 rec.
               |__male sterile germline-dependent 5 rec.
               |__male sterile soma-dependent
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