FB2024_03 , released June 25, 2024
FB2024_03 , released June 25, 2024
CV Term Report
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General Information
Term photoreceptor cell R8 of pale ommatidium ID (Ontology) FBbt:02000004 (Fly Anatomy)
Definition Photoreceptor cell R8 that is part of a pale ommatidium and expresses Rhodopsin 5 (Wernet and Desplan, 2004). It outputs to TM5c, mostly in layer M3 where it terminates, but also in M1-2 (Karuppudurai et al., 2014) and to Tm20, Mi1, Mi4 and some lamina monopolar neurons of the same column (Takemura et al., 2015). It also outputs onto photoreceptor cell R7 of the same column (Takemura et al., 2008; Takemura et al., 2015), mostly in M3 (Takemura et al., 2008).[ FlyBase:FBrf0180690 FlyBase:FBrf0205531 FlyBase:FBrf0224070 FlyBase:FBrf0230092 ]
Also Known As "pR8"
Comment Connectivity with TM5c inferred from GRASP experiments (Karuppudurai et al., 2014). Connectivity with R7, Mi1, Mi4, Tm20 and lamina monopolar neurons based on EM data (Takemura et al., 2008; Takemura et al., 2015). Assertion in Gao et al. (2008) - FBrf0206213 that (non-DRA) R8 is synapsed to Tm9 is not supported by EM data in Takemura et al. (2015).
Links to Extrernal Ontologies
VFB:FBbt_02000004
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      22
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      11
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Relevant FlyBase reports
 Alleles Insertions Constructs
 photoreceptor cell R8 of pale ommatidium (all annotations which use CV term, excluding "NOT" statements)      25      3     14
     photoreceptor cell R8 of pale ommatidium | increased number       8       --       5
     photoreceptor cell R8 of pale ommatidium | somatic clone       2      1       --
Spanning Tree (Parents/Children)
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ommatidium
 |__pale ommatidium________
inner photoreceptor cell   |
 |__photoreceptor cell R8__|
adult cholinergic neuron   |
 |__photoreceptor cell R8__|
                           photoreceptor cell R8 of pale ommatidium  42 rec.
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Is a photoreceptor cell R8
Part of pale ommatidium
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VFB:FBbt_02000004