FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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Term clew stage spermatid ID (Ontology) FBbt:00057171 (Fly Anatomy)
Definition A round spermatid in which fusion of mitochondria into a single, spherical mass with a clew-like (spherical Nebenkern) arrangement is complete. During this stage the centriole inserts into the base of the nucleus to become the basal body. The spermatid has increased in diameter to 6 micrometers. The second nuclear membrane no longer covers the part of the nucleus opposite the basal body and is often continuous with the endoplasmic reticulum.[ FlyBase:FBrf0064778 ]
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  spermatid
   |__pre-elongation spermatid
       |__clew stage spermatid
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Is a pre-elongation spermatid
Develops from agglomeration stage spermatid
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