FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term dorsal vessel primordium ID (Ontology) FBbt:00001665 (Fly Anatomy)
Definition Primordium that makes the inner, contractile layer of the embryonic/larval dorsal vessel. This primordium originates in the mesodermal crest on each side of the embryo. Its component cells (embryonic cardioblasts) become distinct by stage 14. The dorsal vessel is formed by fusion of left and right primordia during, and immediately following, dorsal closure.[ FlyBase:FBrf0089570 FlyBase:FBrf0151925 ]
Comment
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       4
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 dorsal vessel primordium (all annotations which use CV term, excluding "NOT" statements)       4     30      2      4
Spanning Tree (Parents/Children)
Only view relationship:
primordium
 |__circulatory system primordium______
developing material anatomical entity  |
 |__developing embryonic structure_____|
mesodermal derivative                  |
 |__trunk mesoderm derivative__________|
                                       dorsal vessel primordium  161 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a developing embryonic structure
circulatory system primordium
trunk mesoderm derivative
Develops from cardiogenic mesoderm
Part of dorsal closure embryo
hide Synonyms & Secondary IDs
Synonyms
  • "dorsal vessel specific anlage" RELATED
Secondary IDs
hide External Crossreferences & Linkouts