FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

early elongation stage spermatid

ID (Ontology)

FBbt:00057175 (Fly Anatomy)

Definition

A spermatid which has initiated axoneme elongation, but which is relatively short (up to 200 micrometers in length) and retains a round nucleus. The two parts of the mitochondrial derivative are roughly equal in size.[ FlyBase:FBrf0064778 ]

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPE_MANIFEST_IN
Insertions (FBti)	EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)	PHENOTYPE_MANIFEST_IN

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Genes		Insertions	Constructs
early elongation stage spermatid (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

  spermatid
   |__elongation stage spermatid
       |__early elongation stage spermatid  18 rec.
           |__comet stage spermatid 1 rec.
           |__leaf blade stage spermatid 1 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	elongation stage spermatid
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts