embryonic stage 11
http://www.ebi.ac.uk/efo/EFO_0005871
Term info
database cross reference
- FBdv:00005325
comment
Temporal ordering number - 310.
definition
Stage 11 begins with the invagination of the tracheal placodes. Para-segmental furrow form and segment boundary furrows become deep folds. Within the head, gnathal protuberances become apparent. The end of this stage is signaled by the appearance of a distinct cleft at the posterior pole of the embryo, which becomes detached from the vitelline membrane. This marks the beginning of germ-band retraction. Duration at 25 degrees C: approximately 120 minutes (320-440 minutes after egg laying).
term editor
Catherine Leroy