FB2024_04 , released June 25, 2024
FB2024_04 , released June 25, 2024
CV Term Report
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General Information
Term testis ID (Ontology) FBbt:00004928 (Fly Anatomy)
Definition Tube of the male reproductive system connected to the seminal vesicle at the basal end. It is a tube 1.9mm long and 90-100 micrometers in diameter, with the basal half helically coiled and the distal half forming a freely extended arc. The coiled portion is spirally wound twice around a center occupied by the testicular duct and the distal portion of the seminal vesicle. The wall of the testis consists of two very thin layers containing widely spaced nuclei: an inner sheath and an outer sheath composed of small flattened polygonal cells that contain yellow pigment granules. The development of germline cells takes place in the testis.[ FlyBase:FBrf0007735 FlyBase:FBrf0033532 ]
Comment
Links to Extrernal 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     555
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      91
Insertions (FBti)  PHENOTYPE_MANIFEST_IN     163
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN     157
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 Images Insertions Constructs
 testis (all annotations which use CV term, excluding "NOT" statements)     560    352      6    253    205
     testis | adult stage      71       --       --      16     36
     testis | adult stage | cell non-autonomous | somatic clone       3       --       --       2       --
     testis | adult stage | clone of cells       1       --       --       1       --
     testis | adult stage | germline clone       2       --       --       2       --
     testis | adult stage | progressive       3       --       --       --       1
     testis | germline clone       9       --       --       2      4
     testis | heat sensitive       9       --       --       1       --
     testis | larval stage       5       --       --       1       --
     testis | maternal effect       3       --       --       2       --
     testis | progressive       2       --       --       1       --
     testis | progressive | temperature conditional       1       --       --       --       --
     testis | pupal stage       1       --       --       --       --
     testis | RU486 conditional       2       --       --       --       2
     testis | second instar larval stage       1       --       --       1       --
     testis | somatic clone       8       --       --       1      5
     testis | temperature conditional       3       --       --       --       1
     testis | third instar larval stage       5       --       --       3       --
Spanning Tree (Parents/Children)
Only view relationship:
organism
 |__adult____________________________
reproductive system                  |
 |__gonad____________________________|
 |__male reproductive system_________|
male organism                        |
 |__male-specific anatomical entity__|
male-specific anatomical entity      |
 |__male reproductive system_________|
multicellular structure              |
 |__gonad____________________________|
anatomical entity                    |
 |__male-specific anatomical entity__|
                                     testis  4580 rec.
                                      |__germinal proliferation center 609 rec.
                                      |   |__cyst progenitor cell 173 rec.
                                      |   |__germinal proliferation center hub(+) 219 rec.
                                      |   |__male germline stem cell 399 rec.
                                      |__male fusome 61 rec.
                                      |   |__spermatocyte fusome 28 rec.
                                      |__male germline cyst 2141 rec.
                                      |   |__cyst cell of testis(+) 201 rec.
                                      |   |__spermatid cyst(+) 1096 rec.
                                      |   |__spermatocyte cyst(+) 955 rec.
                                      |   |__spermatogonial cyst(+) 405 rec.
                                      |__somatic cell of testis 474 rec.
                                      |   |__cyst cell of testis(+) 201 rec.
                                      |   |__cyst progenitor cell 173 rec.
                                      |   |__hub cell 188 rec.
                                      |__spermatozoon 1751 rec.
                                      |__testis sheath 167 rec.
                                      |   |__terminal epithelium of testis(+) 15 rec.
                                      |   |__testis sheath epithelial cell(+) 120 rec.
                                      |   |__testis sheath muscle cell 28 rec.
                                      |__waste bag 92 rec.
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Is a gonad
male-specific anatomical entity
Part of adult
male reproductive system
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Synonyms
Secondary IDs
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UBERON:0000473