FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

larval testis

ID (Ontology)

FBbt:00058110 (Fly Anatomy)

Definition

Immature testis of the larva. It contains germ-line cells of only pre-meiotic and meiotic stages until the primary spermatocyte stage (Gartner et al., 2014), as well as immature precursors of the adult testis epithelium (Mahadevaraju et al, 2021).[ FlyBase:FBrf0226408 FlyBase:FBrf0248088 ]

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
Constructs (FBtp)	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	Constructs
larval testis (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

organism
 |__larva____________________________
reproductive system                  |
 |__gonad____________________________|
male organism                        |
 |__male-specific anatomical entity__|
multicellular structure              |
 |__gonad____________________________|
anatomical entity                    |
 |__male-specific anatomical entity__|
                                     larval testis  9 rec.
                                      |__male larval germline cyst 3 rec.
                                      |   |__cyst cell of larval testis(+) 1 rec.
                                      |   |__larval primary spermatocyte(+) 1 rec.
                                      |   |__larval spermatogonium
                                      |__somatic cell of larval testis 1 rec.
                                          |__cyst cell of larval testis(+) 1 rec.
                                          |__terminal epithelial precursor cell
                                          |__testis pigment cell precursor

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	gonad male-specific anatomical entity
Part of	larva
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts