dorsal organ [FBbt_00002655]
An external compound sense organ of the antenno-maxillary complex of the larval head consisting of two sensilla, a dome shaped cuticular process, and a region surrounding the base of the dome (Campos-Ortega and Hartenstein, 1997; Komarov and Sprecher, 2022). Each dome sensillum is innervated by seven circularly arranged triplets of olfactory receptor neuron dendrites (Komarov and Sprecher, 2022). Eleven sensory neurons of other modalities innervate six sensilla of each base region (Komarov and Sprecher, 2022; Richter et al., 2024).
dorsal organ
ID: FBbt_00002655
Gustatory system Larva Nervous system Olfactory system Sense organ
An external compound sense organ of the antenno-maxillary complex of the larval head consisting of two sensilla, a dome shaped cuticular process, and a region surrounding the base of the dome (Campos-Ortega and Hartenstein, 1997; Komarov and Sprecher, 2022). Each dome sensillum is innervated by seven circularly arranged triplets of olfactory receptor neuron dendrites (Komarov and Sprecher, 2022). Eleven sensory neurons of other modalities innervate six sensilla of each base region (Komarov and Sprecher, 2022; Richter et al., 2024).
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Classification
- anterior ectoderm derivative
- external compound sense organ
- gustatory sensory organ
- larval antennal segment sense organ
- olfactory sensory organ
Relationships
- develops from: embryonic antennal sense organ
- is part of: larval antenno-maxillary sensory complex
Alternative Names
| Synonym | Scope | Reference |
|---|---|---|
| antennal organ | broad synonym | Singh and Singh, 1984 |
| DO | exact synonym | |
| AntSO | exact synonym | Jurgens et al., 1986 |
| antennal element | related synonym | |
| larval antennal sense organ | exact synonym | Jurgens et al., 1986 |
| do | exact synonym | Gendre et al., 2004 |
| antennales Organ | exact synonym | Hertweck, 1931 |
Neurons with some part in dorsal organ (26 total)
| Thumbnail | Name | Tags |
|---|---|---|
 |
larval olfactory receptor neuron Or42a | Larva, Nervous_system, Olfactory_system, Sensory_neuron |
 |
larval olfactory receptor neuron Or42b | Larva, Nervous_system, Olfactory_system, Sensory_neuron |
 |
larval olfactory receptor neuron Or45a | Larva, Nervous_system, Olfactory_system, Sensory_neuron |
 |
larval olfactory receptor neuron Or45b | Larva, Nervous_system, Olfactory_system, Sensory_neuron |
 |
olfactory receptor neuron of dorsal organ | Larva, Nervous_system, Olfactory_system, Sensory_neuron |
Parts of dorsal organ (2 total)
| Thumbnail | Name | Tags |
|---|---|---|
| dorsal organ base sensillum | Gustatory_system, Larva, Nervous_system, Olfactory_system, Sense_organ | |
| dorsal organ dome sensillum | Gustatory_system, Larva, Nervous_system, Olfactory_system, Sense_organ |
Expression patterns overlapping dorsal organ (6 total)
| Thumbnail | Name | Tags |
|---|---|---|
| P{ppk10-GAL4.L} expression pattern | Expression_pattern | |
| P{Gr2B1-GAL4.2.240} expression pattern | Expression_pattern | |
| P{GAL4}4551 expression pattern | Expression_pattern | |
| P{GawB}GH86 expression pattern | Expression_pattern | |
| P{PZ}Dll[01092] expression pattern | Expression_pattern |
Transgene expression in dorsal organ (6 total)
| Thumbnail | Name | Tags |
|---|---|---|
| P{ppk10-GAL4.L} expression pattern | Expression_pattern | |
| P{Gr2B1-GAL4.2.240} expression pattern | Expression_pattern | |
| P{GAL4}4551 expression pattern | Expression_pattern | |
| P{GawB}GH86 expression pattern | Expression_pattern | |
| P{PZ}Dll[01092] expression pattern | Expression_pattern |
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