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Name
embryonic stage 17 [FBdv_00005335] Stage
Classification
- developmental stage Stage
Relationships
- immediately preceded by embryonic stage 16 Stage
- substage of late embryonic stage Stage
Description
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 cord continues to retract. Duration at 25 degrees C: approximately 8 hours (16-24 hours after egg laying).
Comment
Temporal ordering number - 390.
(Campos-Ortega and Hartenstein, 1997)
Comment
Temporal ordering number - 390.
(Campos-Ortega and Hartenstein, 1997)