Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets.
Associative olfactory memory in Drosophila has two components called labile anesthesia-sensitive memory and consolidated anesthesia-resistant memory (ARM). Mushroom body (MB) is a brain region critical for the olfactory memory and comprised of 2000 neurons that can be classified into αβ, α'β�...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2016-05-01
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| Series: | PLoS Genetics |
| Online Access: | http://europepmc.org/articles/PMC4873240?pdf=render |
| _version_ | 1819150313621291008 |
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| author | Chu-Huai Yang Meng-Fu Maxwell Shih Ching-Ching Chang Meng-Hsuan Chiang Hsiang-Wen Shih Ya-Lun Tsai Ann-Shyn Chiang Tsai-Feng Fu Chia-Lin Wu |
| author_facet | Chu-Huai Yang Meng-Fu Maxwell Shih Ching-Ching Chang Meng-Hsuan Chiang Hsiang-Wen Shih Ya-Lun Tsai Ann-Shyn Chiang Tsai-Feng Fu Chia-Lin Wu |
| author_sort | Chu-Huai Yang |
| collection | DOAJ |
| description | Associative olfactory memory in Drosophila has two components called labile anesthesia-sensitive memory and consolidated anesthesia-resistant memory (ARM). Mushroom body (MB) is a brain region critical for the olfactory memory and comprised of 2000 neurons that can be classified into αβ, α'β', and γ neurons. Previously we demonstrated that two parallel pathways mediated ARM consolidation: the serotonergic dorsal paired medial (DPM)-αβ neurons and the octopaminergic anterior paired lateral (APL)-α'β' neurons. This finding prompted us to ask how this composite ARM is retrieved. Here, we showed that blocking the output of αβ neurons and that of α'β' neurons each impaired ARM retrieval, and blocking both simultaneously had an additive effect. Knockdown of radish and octβ2R in αβ and α'β' neurons, respectively, impaired ARM. A combinatorial assay of radish mutant background rsh1 and neurotransmission blockade confirmed that ARM retrieved from α'β' neuron output is independent of radish. We identified MBON-β2β'2a and MBON-β'2mp as the MB output neurons downstream of αβ and α'β' neurons, respectively, whose glutamatergic transmissions also additively contribute to ARM retrieval. Finally, we showed that α'β' neurons could be functionally subdivided into α'β'm neurons required for ARM retrieval, and α'β'ap neurons required for ARM consolidation. Our work demonstrated that two parallel neural pathways mediating ARM consolidation in Drosophila MB additively contribute to ARM expression during retrieval. |
| first_indexed | 2024-12-22T14:15:31Z |
| format | Article |
| id | doaj.art-a1a3cec9bdfa4465bfa74fce494045fe |
| institution | Directory Open Access Journal |
| issn | 1553-7390 1553-7404 |
| language | English |
| last_indexed | 2024-12-22T14:15:31Z |
| publishDate | 2016-05-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Genetics |
| spelling | doaj.art-a1a3cec9bdfa4465bfa74fce494045fe2022-12-21T18:23:07ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042016-05-01125e100606110.1371/journal.pgen.1006061Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets.Chu-Huai YangMeng-Fu Maxwell ShihChing-Ching ChangMeng-Hsuan ChiangHsiang-Wen ShihYa-Lun TsaiAnn-Shyn ChiangTsai-Feng FuChia-Lin WuAssociative olfactory memory in Drosophila has two components called labile anesthesia-sensitive memory and consolidated anesthesia-resistant memory (ARM). Mushroom body (MB) is a brain region critical for the olfactory memory and comprised of 2000 neurons that can be classified into αβ, α'β', and γ neurons. Previously we demonstrated that two parallel pathways mediated ARM consolidation: the serotonergic dorsal paired medial (DPM)-αβ neurons and the octopaminergic anterior paired lateral (APL)-α'β' neurons. This finding prompted us to ask how this composite ARM is retrieved. Here, we showed that blocking the output of αβ neurons and that of α'β' neurons each impaired ARM retrieval, and blocking both simultaneously had an additive effect. Knockdown of radish and octβ2R in αβ and α'β' neurons, respectively, impaired ARM. A combinatorial assay of radish mutant background rsh1 and neurotransmission blockade confirmed that ARM retrieved from α'β' neuron output is independent of radish. We identified MBON-β2β'2a and MBON-β'2mp as the MB output neurons downstream of αβ and α'β' neurons, respectively, whose glutamatergic transmissions also additively contribute to ARM retrieval. Finally, we showed that α'β' neurons could be functionally subdivided into α'β'm neurons required for ARM retrieval, and α'β'ap neurons required for ARM consolidation. Our work demonstrated that two parallel neural pathways mediating ARM consolidation in Drosophila MB additively contribute to ARM expression during retrieval.http://europepmc.org/articles/PMC4873240?pdf=render |
| spellingShingle | Chu-Huai Yang Meng-Fu Maxwell Shih Ching-Ching Chang Meng-Hsuan Chiang Hsiang-Wen Shih Ya-Lun Tsai Ann-Shyn Chiang Tsai-Feng Fu Chia-Lin Wu Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. PLoS Genetics |
| title | Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. |
| title_full | Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. |
| title_fullStr | Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. |
| title_full_unstemmed | Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. |
| title_short | Additive Expression of Consolidated Memory through Drosophila Mushroom Body Subsets. |
| title_sort | additive expression of consolidated memory through drosophila mushroom body subsets |
| url | http://europepmc.org/articles/PMC4873240?pdf=render |
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