FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term secondary spermatocyte ID (Ontology) FBbt:00004941 (Fly Anatomy)
Definition Spermatocyte from the end of the first meiotic division (meiosis I) to the end of the second meiotic division (meiosis II).[ FlyBase:FBrf0064778 ]
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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       9
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       3
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 secondary spermatocyte (all annotations which use CV term, excluding "NOT" statements)       9     13      5      6
     secondary spermatocyte | male       2       --       --       --
Spanning Tree (Parents/Children)
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  male germline cell
   |__spermatocyte
       |__secondary spermatocyte  35 rec.
           |__interphase secondary spermatocyte
           |__meiotic secondary spermatocyte 2 rec.
               |__secondary spermatocyte in meiotic anaphase II
               |__secondary spermatocyte in meiotic metaphase II
               |__secondary spermatocyte in meiotic prophase II
               |__secondary spermatocyte in meiotic telophase II 2 rec.
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Is a spermatocyte
Develops from primary spermatocyte
Part of secondary spermatocyte cyst
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Synonyms
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CL:0000657