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Phenotype Annotation :

Annotation Type  manifest in Description  photoreceptor cell R8
Allele . Primary Identifier  FBal0014168

1 Allele

DB identifier Symbol Allele Class Organism
FBal0014168 R[1] neomorphic allele - genetic evidence Drosophila melanogaster

1 Anatomy Term

Identifier Name Description
FBbt:00004227 photoreceptor cell R8 Inner photoreceptor cell of the ommatidium whose centrally located rhabdomere extends across the proximal third (approximately) of each ommatidium. Each has a single axon that extends through a single lamina optic cartridge (FBbt:00003747) without making synapses. This axon crosses the first optic chiasm and enters the equivalent column of the medulla, making presynaptic contacts in M1-3 and terminating in M3. Presynaptic contacts in M1 are mainly to lamina monopolar neurons L1 and L5 (Takemura et al., 2008). Presynaptic contacts to photoreceptor R7 are more distal - concentrated in M3 (Takemura et al., 2008). It also makes presynaptic contacts to Tm9 (Gao et al., 2008).

0 CV Terms

1 Data Sets

Name URL
FlyBase data set for Drosophila melanogaster  

0 Development Term

1 Publications

First Author Title Year Journal Volume Pages PubMed ID
Hariharan IK The Drosophila roughened mutation: activation of a rap homolog disrupts eye development and interferes with cell determination. 1991 Cell 67 717-22 1934069