FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term stage 17 embryo ID (Ontology) FBbt:00005335 (Fly Anatomy)
Definition Stage 17 begins when the dorsal ridge (frontal sac) has overgrown the tip of the clypeolabrum, which is thereby enclosed in the atrium. It lasts until hatching of the embryo (approximately 24 hours after egg laying), during which time much terminal differentiation occurs, the tracheal tree fills with air, so becoming completely visible, and the ventral nerve cord continues to retract. Duration at 25 degrees C: approximately 8 hours (960-1440 minutes after egg laying).[ FlyBase:FBrf0089570 ]
Comment DEPRECATION WARNING.
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 stage 17 embryo (all annotations which use CV term, excluding "NOT" statements)      18
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  embryo
   |__late embryo
       |__stage 17 embryo  18 rec.
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