FB2024_02 , released April 23, 2024
FB2024_02 , released April 23, 2024
CV Term Report
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General Information
Term embryonic stage 8 ID (Ontology) FBdv:00005322 (Fly Development)
Definition Stage 8 starts with the rapid phase of germ band extension and ends with the beginning of mesodermal segmentation. By the end of this stage germ band extension has progressed to the point where the proctodeal opening is at about 60% egg length and the dorsal folds (transverse furrows) are no longer visible. Duration at 25 degrees C: approximately 30 minutes (190-220 minutes after egg laying).[ FlyBase:FBrf0089570 ]
Also Known As "rapidly extending germ band stage"
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      53
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 embryonic stage 8 (all annotations which use CV term, excluding "NOT" statements)       --    3281     53     86
     abnormal cell migration | embryonic stage 8       5       --       --       5
     abnormal cytokinesis | embryonic stage 8       3       --       --       3
     embryo | embryonic stage 8       1       --       --       --
     mesoderm | embryonic stage 8       5       --       --       5
     neuroblast | embryonic stage 8 | maternal effect | increased number       1       --       --       --
     neurogenic phenotype | embryonic stage 8 | maternal effect       2       --       --       --
Spanning Tree (Parents/Children)
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developmental stage
 |__gastrula stage__
embryonic stage     |
 |__gastrula stage__|
                    embryonic stage 8  3420 rec.
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Substage of gastrula stage
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Synonyms
  • "rapidly extending germ band stage" EXACT
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