FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term eyelet photoreceptor cell ID (Ontology) FBbt:00005740 (Fly Anatomy)
Definition Cholinergic, rhabdomeric photoreceptor cell of the eyelet (Yasuyama and Meinertzhagen, 1999). It expresses Rh6 and is green light-sensitive (Jean-Guillaume and Kumar, 2022). It develops from an Rh5 photoreceptor of the larval Bolwig organ, which changes its Rhodopsin expression during pupal development (Jean-Guillaume and Kumar, 2022). Its functions in the entrainment of the circadian clock (Helfrich-Forster et al., 2002). Its axon terminates in the accessory medulla (Helfrich-Forster et al., 2007). There are four of these cells per eyelet (Jean-Guillaume and Kumar, 2022).[ FlyBase:FBrf0111143 FlyBase:FBrf0152146 FlyBase:FBrf0193849 FlyBase:FBrf0255165 ]
Also Known As "H-B eyelet photoreceptor" ; "HBeyelet"
Comment Evidence that this is a cholinergic sensory neuron comes from staining for choline acetyltransferase expression. (Yasuyama and Meinertzhagen, 1999).
Links to External Ontologies
VFB:FBbt_00005740
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       3
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
 eyelet photoreceptor cell (all annotations which use CV term, excluding "NOT" statements)       3      6      2     12
Spanning Tree (Parents/Children)
Only view relationship: 
photoreceptor neuron
 |__rhabdomeric photoreceptor cell__
sensory neuron                      |
 |__adult sensory neuron____________|
cholinergic neuron                  |
 |__adult cholinergic neuron________|
adult neuron                        |
 |__accessory medulla neuron________|
 |__adult cholinergic neuron________|
 |__adult sensory neuron____________|
 |__adult PNS neuron________________|
PNS neuron                          |
 |__adult PNS neuron________________|
somatic cell                        |
 |__sensory organ cell______________|
                                    eyelet photoreceptor cell  23 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a sensory organ cell
rhabdomeric photoreceptor cell
accessory medulla neuron
adult cholinergic neuron
adult sensory neuron
adult PNS neuron
Develops from Rh5 photoreceptor of Bolwig organ
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "H-B eyelet photoreceptor" EXACT
    "HBeyelet" EXACT VFB_SYMBOL
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00005740