Two Brain Pathways Initiate Distinct Forward Walking Programs in Drosophila.
Two Brain Pathways Initiate Distinct Forward Walking Programs in Drosophila.
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DOI:
10.1016/j.neuron.2020.07.032
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发表时间:
2020-11-11
期刊:
影响因子:
16.2
通讯作者:
Scott, Kristin
中科院分区:
文献类型:
--
作者:
Bidaye, Salil S.;Laturney, Meghan;Chang, Amy K.;Liu, Yuejiang;Bockemuehl, Till;Bueschges, Ansgar;Scott, Kristin
An animal at rest or engaged in stationary behaviors can instantaneously initiate goal-directed walking. How descending brain inputs trigger rapid transitions from a non-walking state to an appropriate walking state is unclear. Here, we identify two neuronal types, P9 and BPN, in the Drosophila brain that, upon activation, initiate and maintain two distinct coordinated walking patterns. P9 drives forward walking with ipsilateral turning, receives inputs from central courtship-promoting neurons and visual projection neurons and is necessary for a male to pursue a female during courtship. In contrast, BPN drives straight, forward walking and is not required during courtship. BPN is instead recruited during and required for fast, straight, forward walking bouts. Thus, this study reveals separate brain pathways for object-directed walking and fast, straight, forward walking, providing insight into how the brain initiates context-appropriate walking programs. Bidaye et al. characterize two neuronal types P9 and BPN that drive two distinct forward walking programs in Drosophila. These brain pathways recruit the downstream motor circuits for walking in a task-specific manner such that a stationary animal can directly switch into a specific walking mode.
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