Distinct neuropeptide-receptor modules regulate a sex-specific behavioral response to a pheromone.

Distinct neuropeptide-receptor modules regulate a sex-specific behavioral response to a pheromone.
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DOI:
10.1038/s42003-021-02547-7
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发表时间:
2021-08-31
影响因子:
5.9
通讯作者:
Srinivasan J
Srinivasan J
中科院分区:
生物学2区
文献类型:
--
作者:
Reilly DK;McGlame EJ;Vandewyer E;Robidoux AN;Muirhead CS;Northcott HT;Joyce W;Alkema MJ;Gegear RJ;Beets I;Srinivasan J

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雌雄异株的物种是动物王国的一个标志,相反的性别对相同的感官线索有不同的反应。在这里,我们研究了C。小分子信息素,ascr#8,这elephants相反的行为价在每一个性别。我们确定了一种新的神经肽神经肽受体(NP/NPR)模块,是活跃的男性,但不是在雌雄同体。使用我们建立的神经肽拯救的新范例,我们利用单个肽的细菌表达来拯救对ascr#8的性别特异性反应。同时进行的生物化学研究证实,个别FLP-3肽差异激活两个不同的受体,NPR-10和FRPR-16。有趣的是,在我们的喂养范例中拯救行为的两种肽通过保守的苏氨酸相关,这表明特定的NP/NPR组合设置雄性状态,驱动ascr#8响应的正确行为效价。前运动神经元内的受体表达揭示了男性特异性和核心运动回路的新协调。Reilly等鉴定了一种神经肽-神经肽受体(NP/NPR)模块,该模块在雄性中有活性,但在雌雄同体C中无活性。优雅的。使用神经肽救援范例,他们证明了前运动神经元内的受体表达介导了雄性特异性和核心运动回路的协调。
Dioecious species are a hallmark of the animal kingdom, with opposing sexes responding differently to identical sensory cues. Here, we study the response of C. elegans to the small-molecule pheromone, ascr#8, which elicits opposing behavioral valences in each sex. We identify a novel neuropeptide-neuropeptide receptor (NP/NPR) module that is active in males, but not in hermaphrodites. Using a novel paradigm of neuropeptide rescue that we established, we leverage bacterial expression of individual peptides to rescue the sex-specific response to ascr#8. Concurrent biochemical studies confirmed individual FLP-3 peptides differentially activate two divergent receptors, NPR-10 and FRPR-16. Interestingly, the two of the peptides that rescued behavior in our feeding paradigm are related through a conserved threonine, suggesting that a specific NP/NPR combination sets a male state, driving the correct behavioral valence of the ascr#8 response. Receptor expression within pre-motor neurons reveals novel coordination of male-specific and core locomotory circuitries. Reilly et al identify a neuropeptide-neuropeptide receptor (NP/NPR) module that is active in male but not in hermaphrodite C. elegans. Using a neuropeptide rescue paradigm, they demonstrate that receptor expression within pre-motor neurons mediates coordination of male-specific and core locomotor circuitries.
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