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Persistent larval sensory neurons in adult Drosophila melanogaster

Persistent larval sensory neurons in adult Drosophila melanogaster
Persistent larval sensory neurons in adult Drosophila melanogaster
Using a combination of lineage tracing and laser ablation, we have identified a segmentally repeated array of embryonically produced sensory neurons that persist through metamorphosis into adult stages of Drosophila development. The persistent sensory neurons are found in all unfused abdominal segments, but there is segment-specific variation in the number of neurons observed. There are 12 persistent neurons in the first abdominal segment (A1), 18 in the second (A2), and 16 in segments A3-A7. Most are internal sensory neurons (dendritic arborization neurons and bipolar dendrite neurons), but two are associated with external sensilla on the sternite. All of these neurons and their axons define specific adult sensory pathways in the periphery and their locations and persistence through metamorphosis suggest a role in guiding the growth of adult sensory and motor axons.
development, axon guidance, laser ablation, insect, metamorphosis
0022-3034
275-286
Williams, Darren W.
604e70da-4237-4069-87b0-6dff0917ca49
Shepherd, David
11aa6858-d19c-4450-82ff-11dff9dcd9c4
Williams, Darren W.
604e70da-4237-4069-87b0-6dff0917ca49
Shepherd, David
11aa6858-d19c-4450-82ff-11dff9dcd9c4

Williams, Darren W. and Shepherd, David (1999) Persistent larval sensory neurons in adult Drosophila melanogaster. Journal of Neurobiology, 39 (2), 275-286. (doi:10.1002/(SICI)1097-4695(199905)39:2<275::AID-NEU11>3.0.CO;2-0).

Record type: Article

Abstract

Using a combination of lineage tracing and laser ablation, we have identified a segmentally repeated array of embryonically produced sensory neurons that persist through metamorphosis into adult stages of Drosophila development. The persistent sensory neurons are found in all unfused abdominal segments, but there is segment-specific variation in the number of neurons observed. There are 12 persistent neurons in the first abdominal segment (A1), 18 in the second (A2), and 16 in segments A3-A7. Most are internal sensory neurons (dendritic arborization neurons and bipolar dendrite neurons), but two are associated with external sensilla on the sternite. All of these neurons and their axons define specific adult sensory pathways in the periphery and their locations and persistence through metamorphosis suggest a role in guiding the growth of adult sensory and motor axons.

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More information

Published date: May 1999
Keywords: development, axon guidance, laser ablation, insect, metamorphosis

Identifiers

Local EPrints ID: 56188
URI: http://eprints.soton.ac.uk/id/eprint/56188
ISSN: 0022-3034
PURE UUID: e411b113-37b2-4772-bd3a-b1a7f95b4a62

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Date deposited: 22 Aug 2008
Last modified: 15 Mar 2024 11:00

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Contributors

Author: Darren W. Williams
Author: David Shepherd

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