FB2026_03 , released September 17, 2026
CV Term Report
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Term embryonic stage 2 ID (Ontology) FBdv:00005293 (Fly Development)
Definition Nuclear divisions 3-8. The egg cytoplasm contracts producing a clear separation from the vitelline membrane and empty spaces at the anterior and posterior. The cleavage nuclei migrate towards the periphery. Duration at 25 degrees C approximately 40 minutes (25-65 minutes AEL).[ FlyBase:FBrf0089570 ]
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Data ClassFieldDirect annotations
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 Alleles Genes Insertions Constructs
 embryonic stage 2 (all annotations which use CV term, excluding "NOT" statements)       --
     abnormal mitotic cell cycle | embryonic stage 2
      --       --       --
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cleavage stage
 |__pre-blastoderm stage__
developmental stage       |
 |__pre-blastoderm stage__|
                          embryonic stage 2  4367 rec.
                           |__embryonic cycle 2 6 rec.
                           |__embryonic cycle 3 4306 rec.
                           |__embryonic cycle 4 4306 rec.
                           |__embryonic cycle 5 4306 rec.
                           |__embryonic cycle 6 4306 rec.
                           |__embryonic cycle 7 4306 rec.
                           |__embryonic cycle 8 4306 rec.
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