FB2026_03 , released September 17, 2026
CV Term Report
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Term embryonic stage 10 ID (Ontology) FBdv:00005324 (Fly Development)
Definition Stage 10 begins with the appearance of the stomodeal invagination, slightly ventral to the anterior pole. Periodic furrows appear in the embryonic epidermis around the middle of the stage. The germ band continues to extend, reaching its maximum extent of 75% egg length towards the end of the stage. The end of the stage is marked by the beginning of invagination of the tracheal placodes. Duration at 25 degrees : approximately 60 minutes (260-320 minutes after egg laying).[ 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 10 (all annotations which use CV term, excluding "NOT" statements)       --
     abnormal cell migration | embryonic stage 10
      --       --
     abnormal neuroanatomy | embryonic stage 10
      --       --
     adherens junction | embryonic stage 10
      --       --       --
     decreased cell number | embryonic stage 10
      --       --       --
     embryonic/larval plasmatocyte | embryonic stage 10
      --
      --
     germline cell | embryonic stage 10 | maternal effect
      --
      --
     germline stem cell | embryonic stage 10
      --
      --
     increased cell number | embryonic stage 10
      --       --       --
     interstitial cell precursor | embryonic stage 10 | increased number
      --       --       --
     neuroblast MBp | embryonic stage 10
      --       --
     pericardial cell primordium | embryonic stage 10
      --       --       --
     primordial germ cell | embryonic stage 10 | maternal effect
      --       --       --
     somatic trunk mesoderm | embryonic stage 10
      --       --       --
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developmental stage_________________
 |__early extended germ band stage__|
extended germ band stage            |
 |__early extended germ band stage__|
                                    embryonic stage 10  3917 rec.
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Substage of early extended germ band stage
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