FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term ventral nerve cord primordium ID (Ontology) FBbt:00005554 (Fly Anatomy)
Definition Primordium which is formed by the delamination of neuroblasts from the ventral neurogenic region. The first of five waves of delamination starts towards the end of embryonic stage 8. During stage 11, the mesectoderm loses contact with the outer surface and forms neuronal and glial precursors in the midline of this primordium.[ FlyBase:FBrf0089570 ]
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 ventral nerve cord primordium (all annotations which use CV term, excluding "NOT" statements)
     ventral nerve cord primordium | embryonic stage
      --
     ventral nerve cord primordium | embryonic stage 15 | rescuable maternal effect
      --       --       --
     ventral nerve cord primordium | maternal effect
      --       --       --
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embryo
 |__developing embryonic structure_____
 |__extended germ band embryo__________|
developing material anatomical entity  |
 |__developing embryonic structure_____|
 |__primordium_________________________|
ectodermal derivative                  |
 |__ventral ectoderm derivative________|
multicellular structure                |
 |__portion of tissue__________________|
                                       ventral nerve cord primordium  875 rec.
                                        |__ganglion mother cell GMC7-1a
                                        |__ganglion mother cell GMC7-1b
                                        |__ganglion mother cell GMC7-1c
                                        |__ganglion mother cell GMC7-1d
                                        |__ganglion mother cell GMC7-1e
                                        |__ganglion mother cell GMC7-1f
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Is a developing embryonic structure
primordium
portion of tissue
ventral ectoderm derivative
Develops from ventral neuroectoderm
Part of extended germ band embryo
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Synonyms
  • "AvenNeur" RELATED
    "P3 venNeur" RELATED
    "venNeurP3" RELATED
    "ventral neurectoderm" RELATED
    "ventral neuroderm primordium" RELATED
    "ventral neuroectoderm" RELATED
Secondary IDs
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