FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term stage 12 embryo ID (Ontology) FBbt:00005327 (Fly Anatomy)
Definition Germ band retraction. Stage 12 begins when germ-band retraction starts and ends when this process is complete so that the prospective anal plate occupies the posterior pole. During this stage the posterior and anterior hindgut primordia meet and fuse and the tracheal pits fuse to form the tracheal tree. Duration at 25 degrees C: approximately 120 minutes (440-560 minutes after egg laying).[ FlyBase:FBrf0089570 ]
Comment DEPRECATION WARNING.
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Images
 stage 12 embryo (all annotations which use CV term, excluding "NOT" statements)      16
Spanning Tree (Parents/Children)
Only view relationship: 
  extended germ band embryo
   |__late extended germ band embryo
       |__stage 12 embryo  52 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a late extended germ band embryo
Develops from stage 11 embryo
Part of
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts