FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term blastoderm embryo ID (Ontology) FBbt:00005304 (Fly Anatomy)
Definition Embryo during the blastoderm stage, where most nuclei are found at the cortex (periphery) of the embryo (Foe and Alberts, 1983; Jaeger et al., 2012). The blastoderm stage begins shortly after completion of the ninth cleavage division and lasts until the onset of gastrulation, including cleavage cycles 10-14A (Foe and Alberts, 1983; Jaeger et al., 2012). This corresponds to embryonic stages 4 (syncitial blastoderm stage) and 5 (cellular blastoderm stage) (Campos-Ortega and Hartenstein, 1997).[ FlyBase:FBrf0039741 FlyBase:FBrf0089570 FlyBase:FBrf0220623 ]
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 blastoderm embryo (all annotations which use CV term, excluding "NOT" statements)       6
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  organism
   |__embryo
       |__blastoderm embryo  450 rec.
           |__embryonic cortex 35 rec.
           |__stage 5 embryo 379 rec.
           |   |__amnioserosa anlage in statu nascendi 5 rec.
           |   |__central brain anlage in statu nascendi 224 rec.
           |   |__foregut anlage in statu nascendi 76 rec.
           |   |__furrow canal 62 rec.
           |   |__hindgut anlage in statu nascendi 71 rec.
           |   |__hypopharynx anlage in statu nascendi 9 rec.
           |   |__somatic cell of stage 5 embryo 4 rec.
           |   |__visual anlage in statu nascendi 229 rec.
           |__syncytial blastoderm embryo 33 rec.
           |   |__pole bud 22 rec.
           |   |__stage 3 embryo(+) 2 rec.
           |   |__stage 4 embryo(+) 9 rec.
           |__yolk sac membrane 5 rec.
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FBdv:00005304