FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term stage 13 embryo ID (Ontology) FBbt:00005328 (Fly Anatomy)
Definition Stage 13 begins at the completion of germ-band retraction, when the prospective anal plate occupy the posterior pole. The dorsal ridge becomes apparent externally; the clypeolabrum retracts, leaving a triangular shaped gap at the anterior pole; the labium moves to the ventral midline. This stage ends when head involution begins. Duration at 25 degrees C:Approximately 60 minutes (560-620 minutes after egg laying).[ FlyBase:FBrf0089570 ]
Comment DEPRECATION WARNING.
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 stage 13 embryo (all annotations which use CV term, excluding "NOT" statements)      19
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  embryo
   |__dorsal closure embryo
       |__stage 13 embryo  55 rec.
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Is a dorsal closure embryo
Develops from stage 12 embryo
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