Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila

Gap junctions are widely distributed in the brains across species and play essential roles in neural information processing. However, the role of gap junctions in insect cognition remains poorly understood. Using a flight simulator paradigm and genetic tools, we found that gap junctions are present...

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Main Authors: Qingqing Liu, Xing Yang, Jingsong Tian, Zhongbao Gao, Meng Wang, Yan Li, Aike Guo
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2016-05-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/13238
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author Qingqing Liu
Xing Yang
Jingsong Tian
Zhongbao Gao
Meng Wang
Yan Li
Aike Guo
author_facet Qingqing Liu
Xing Yang
Jingsong Tian
Zhongbao Gao
Meng Wang
Yan Li
Aike Guo
author_sort Qingqing Liu
collection DOAJ
description Gap junctions are widely distributed in the brains across species and play essential roles in neural information processing. However, the role of gap junctions in insect cognition remains poorly understood. Using a flight simulator paradigm and genetic tools, we found that gap junctions are present in Drosophila Kenyon cells (KCs), the major neurons of the mushroom bodies (MBs), and showed that they play an important role in visual learning and memory. Using a dye coupling approach, we determined the distribution of gap junctions in KCs. Furthermore, we identified a single pair of MB output neurons (MBONs) that possess a gap junction connection to KCs, and provide strong evidence that this connection is also required for visual learning and memory. Together, our results reveal gap junction networks in KCs and the KC-MBON circuit, and bring new insight into the synaptic network underlying fly’s visual learning and memory.
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spelling doaj.art-b1854564798444f29dc1c9cee9fbd30e2022-12-22T04:29:20ZengeLife Sciences Publications LtdeLife2050-084X2016-05-01510.7554/eLife.13238Gap junction networks in mushroom bodies participate in visual learning and memory in DrosophilaQingqing Liu0Xing Yang1https://orcid.org/0000-0001-6710-0012Jingsong Tian2Zhongbao Gao3Meng Wang4Yan Li5Aike Guo6https://orcid.org/0000-0002-6515-7944State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, CAS, Shanghai, ChinaState Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, CAS, Shanghai, ChinaGap junctions are widely distributed in the brains across species and play essential roles in neural information processing. However, the role of gap junctions in insect cognition remains poorly understood. Using a flight simulator paradigm and genetic tools, we found that gap junctions are present in Drosophila Kenyon cells (KCs), the major neurons of the mushroom bodies (MBs), and showed that they play an important role in visual learning and memory. Using a dye coupling approach, we determined the distribution of gap junctions in KCs. Furthermore, we identified a single pair of MB output neurons (MBONs) that possess a gap junction connection to KCs, and provide strong evidence that this connection is also required for visual learning and memory. Together, our results reveal gap junction networks in KCs and the KC-MBON circuit, and bring new insight into the synaptic network underlying fly’s visual learning and memory.https://elifesciences.org/articles/13238gap junctionsoptogeneticsvisual learning and memory
spellingShingle Qingqing Liu
Xing Yang
Jingsong Tian
Zhongbao Gao
Meng Wang
Yan Li
Aike Guo
Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
eLife
gap junctions
optogenetics
visual learning and memory
title Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
title_full Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
title_fullStr Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
title_full_unstemmed Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
title_short Gap junction networks in mushroom bodies participate in visual learning and memory in Drosophila
title_sort gap junction networks in mushroom bodies participate in visual learning and memory in drosophila
topic gap junctions
optogenetics
visual learning and memory
url https://elifesciences.org/articles/13238
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AT mengwang gapjunctionnetworksinmushroombodiesparticipateinvisuallearningandmemoryindrosophila
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