Dorsal clock networks drive temperature preference rhythms in Drosophila.
Dorsal clock networks drive temperature preference rhythms in Drosophila.
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DOI：
10.1016/j.celrep.2022.110668
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发表时间：
2022-04-12
期刊：
影响因子：
8.8
通讯作者：
Hamada, Fumika N.
中科院分区：
文献类型：
--
作者：
Chen, Shyh-Chi;Tang, Xin;Goda, Tadahiro;Umezaki, Yujiro;Riley, Abigail C.;Sekiguchi, Manabu;Yoshii, Taishi;Hamada, Fumika N.
Animals display a body temperature rhythm (BTR). Little is known about the mechanisms by which a rhythmic pattern of BTR is regulated and how body temperature is set at different times of the day. As small ectotherms, Drosophila exhibit a daily temperature preference rhythm (TPR), which generates BTR. Here, we demonstrate dorsal clock networks that play essential roles in TPR. Dorsal neurons 2 (DN2s) are the main clock for TPR. We find that DN2s and posterior DN1s (DN1ps) contact and the extent of contacts increases during the day and that the silencing of DN2s or DN1ps leads to a lower temperature preference. The data suggest that temporal control of the microcircuit from DN2s to DN1ps contributes to TPR regulation. We also identify anterior DN1s (DN1as) as another important clock for TPR. Thus, we show that the DN networks predominantly control TPR and determine both a rhythmic pattern and preferred temperatures. The body temperature rhythm (BTR) is vital for maintaining homeostasis. Drosophila exhibit a daily temperature preference rhythm (TPR), which generates BTR. Chen et al. show that dorsal clock neurons in the brain form a time-dependent network and govern TPR by regulating a rhythmic pattern and a temperature setpoint.
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