Reconstruction of motor control circuits in adult Drosophila using automated transmission electron microscopy.

Reconstruction of motor control circuits in adult Drosophila using automated transmission electron microscopy.
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DOI:
10.1016/j.cell.2020.12.013
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发表时间:
2021-02-04
期刊:
影响因子:
64.5
通讯作者:
Lee WA
Lee WA
中科院分区:
生物学1区
文献类型:
--
作者:
Phelps JS;Hildebrand DGC;Graham BJ;Kuan AT;Thomas LA;Nguyen TM;Buhmann J;Azevedo AW;Sustar A;Agrawal S;Liu M;Shanny BL;Funke J;Tuthill JC;Lee WA

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To investigate circuit mechanisms underlying locomotor behavior, we used serial-section electron microscopy (EM) to acquire a synapse-resolution dataset containing the ventral nerve cord (VNC) of an adult female Drosophila melanogaster. To generate this dataset, we developed GridTape, a technology that combines automated serial-section collection with automated high-throughput transmission EM. Using this dataset, we studied neuronal networks that control leg and wing movements by reconstructing all 507 motor neurons that control the limbs. We show that a specific class of leg sensory neurons synapses directly onto motor neurons with the largest-caliber axons on both sides of the body, representing a unique pathway for fast limb control. We provide open access to the dataset and reconstructions registered to a standard atlas to permit matching of cells between EM and light microscopy data. We also provide GridTape instrumentation designs and software to make large-scale EM more accessible and affordable to the scientific community. GridTape, an automated transmission electron microscopy pipeline, is used to reconstruct all motor neurons controlling the limb at synapse resolution from an adult Drosophila ventral nerve cord to reveal pathways in motor control.
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