Oxytocin/vasopressin-related peptides have an ancient role in reproductive behavior.

Oxytocin/vasopressin-related peptides have an ancient role in reproductive behavior.
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DOI:
10.1126/science.1226201
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发表时间:
2012-10-26
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Bargmann CI
Bargmann CI
中科院分区:
其他
文献类型:
--
作者:
Garrison JL;Macosko EZ;Bernstein S;Pokala N;Albrecht DR;Bargmann CI

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许多生物功能是保守的,但保守适用于综合行为的程度尚不清楚。加压素和催产素神经肽与哺乳动物的生殖和社会行为密切相关,但啮齿动物功能丧失突变体具有相对微妙的行为缺陷。在这里,我们鉴定了秀丽隐杆线虫中的催产素/加压素样信号系统,该系统由一个肽和两个以性别二态性模式表达的受体组成。缺乏这种肽或其受体的雄性在繁殖行为方面表现不佳,包括寻找配偶、识别配偶和交配,但其他感觉运动行为完好无损。定量分析表明,突变体的交配运动模式是支离破碎且低效的,这表明催产素/加压素肽增加了交配行为的一致性。这些结果表明保守分子协调生殖行为中的不同行为模式。
Many biological functions are conserved, but the extent to which conservation applies to integrative behaviors is unknown. Vasopressin and oxytocin neuropeptides are strongly implicated in mammalian reproductive and social behaviors, yet rodent loss-of-function mutants have relatively subtle behavioral defects. Here we identify an oxytocin/vasopressin-like signaling system in Caenorhabditis elegans, consisting of a peptide and two receptors that are expressed in sexually dimorphic patterns. Males lacking the peptide or its receptors perform poorly in reproductive behaviors, including mate search, mate recognition, and mating, but other sensorimotor behaviors are intact. Quantitative analysis indicates that mating motor patterns are fragmented and inefficient in mutants, suggesting that oxytocin/vasopressin peptides increase the coherence of mating behaviors. These results indicate that conserved molecules coordinate diverse behavioral motifs in reproductive behavior.
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