PreprintCited by 1Neurobiology and Insect Physiology ResearchNeuroscience and Neuropharmacology ResearchTactile and Sensory Interactions

Somatotopic organization among parallel sensory pathways that promote a grooming sequence in Drosophila

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Eichler, Katharina, Hampel, Stefanie, Alejandro-García, Adrián, Calle-Schuler, Steven A., Santana-Cruz, Alexis, Kmecova, Lucia, Blagburn, Jonathan M., Hoopfer, Eric D. +1 more·2023·eLife

Abstract

Abstract Mechanosensory neurons located across the body surface respond to tactile stimuli and elicit diverse behavioral responses, from relatively simple stimulus location-aimed movements to complex movement sequences. How mechanosensory neurons and their postsynaptic circuits influence such diverse behaviors remains unclear. We previously discovered that Drosophila perform a body location-prioritized grooming sequence when mechanosensory neurons at different locations on the head and body are simultaneously stimulated by dust (Hampel et al., 2017; Seeds et al., 2014). Here, we identify nearly all mechanosensory neurons on the Drosophila head that individually elicit aimed grooming of specific head locations, while collectively eliciting a whole head grooming sequence. Different tracing methods were used to reconstruct the projections of these neurons from different locations on the head to their distinct arborizations in the brain. This provides the first synaptic resolution somatotopic map of a head, and defines the parallel-projecting mechanosensory pathways that elicit head grooming.

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Crossref · 10.7554/elife.87602.1

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107 of 107 references verified0 citation errors · 0 not checkable

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  • Previous studies have identified almost all head mechanosensory bristle and taste peg mechanosensory neurons in the left hemisphere.

    “Previous studies have identified almost all head mechanosensory bristle and taste peg mechanosensory neurons102 in the left hemisphere (at the time of publication: right hemisphere).”

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Authors
Eichler, K., Hampel, S., Alejandro-García, A., Calle-Schuler, S. A., Santana-Cruz, A., Kmecova, L., Blagburn, J. M., Hoopfer, E. D., & Seeds, A. M.
Affiliations
University of Puerto Rico, Medical Sciences Campus (PR)
Venue
eLife
Published
2023-05-31
ISSN
2050-084X (ISSN-L)
OpenAlex
W4378837415
Cited by
1
References
107
Citations by year
2024: 1
Type
posted content
Language
en
Open access
Locations
eLife (acceptedVersion, cc-by)
Funders
  • BRAIN Initiative (1RF1NS121911-01)
  • Puerto Rico Science, Technology and Research Trust (2020-00195)
  • Whitehall Foundation (2017-12-69)
  • National Institute on Minority Health and Health Disparities (MD007600)
  • National Institute of General Medical Sciences (R25GM061838, 5R25GM061151, GM103642)
  • National Science Foundation (HRD-1736019)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
somatotopic map, mechanosensory neurons, grooming, Drosophila, parallel sensory pathways, arborization, tactile stimuli, body location

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