The D1 family dopamine receptor, DopR, potentiates hind leg grooming behavior in Drosophila.

The D1 family dopamine receptor, DopR, potentiates hind leg grooming behavior in Drosophila.
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DOI:
10.1111/gbb.12264
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发表时间:
2016-03
期刊:
Genes, brain, and behavior
影响因子:
--
通讯作者:
Lebestky T
Lebestky T
中科院分区:
其他
文献类型:
--
作者:
Pitmon E;Stephens G;Parkhurst SJ;Wolf FW;Kehne G;Taylor M;Lebestky T

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果蝇用它们的腿将碎片和病原体从身体中清理出去,这是一种固有的运动行为。在这里,我们调查了一个方面的梳理剧目的特点D1家族多巴胺受体,DopR。DopR的去除导致后腿梳理减少,如通过定量突变体和RNAi动物相对于对照的染料残留和行为事件的直接评分所证实的。这些数据也得到药理学结果的支持,D1受体激动剂不能增强无头DopR果蝇的理毛行为。DopR蛋白在胸神经节的神经元中广泛表达,并与TH阳性多巴胺能神经元重叠。在突变动物中广泛的多巴胺受体神经元表达恢复了正常的理毛行为。这些数据为DopR在增强成年果蝇胸神经节后肢梳理行为中的作用提供了证据。这是一个显着的并列相当大的作用,D1家族多巴胺受体在啮齿动物梳理,和未来的调查电路的进化关系可能是必要的。
Drosophila groom away debris and pathogens from the body using their legs in a stereotyped sequence of innate motor behaviors. Here, we investigated one aspect of the grooming repertoire by characterizing the D1 family dopamine receptor, DopR. Removal of DopR results in decreased hind leg grooming, as substantiated by quantitation of dye remaining on mutant and RNAi animals vs. controls and direct scoring of behavioral events. These data are also supported by pharmacological results that D1 receptor agonists fail to potentiate grooming behaviors in headless DopR flies. DopR protein is broadly expressed in the neuropil of the thoracic ganglion and overlaps with TH‐positive dopaminergic neurons. Broad neuronal expression of dopamine receptor in mutant animals restored normal grooming behaviors. These data provide evidence for the role of DopR in potentiating hind leg grooming behaviors in the thoracic ganglion of adult Drosophila. This is a remarkable juxtaposition to the considerable role of D1 family dopamine receptors in rodent grooming, and future investigations of evolutionary relationships of circuitry may be warranted.
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