平衡生殖追求和视觉危险

IF 12.5 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Dimitris Typas
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引用次数: 0

摘要

人类和其他动物每天都有意无意地进行风险-收益分析。对于处于繁殖年龄的动物来说,这种分析的一个主要例子是评估繁殖成功的好处与被捕食的代价。尺度需要敏感:过于优先考虑生存,可能会导致缺乏后代,或者破坏危险,可能会导致死亡。虽然先前的研究和经验知识表明,雄性在得到表明成功交配可能性增加的许可信号时,对潜在危险的关注程度会降低,但调控这种行为的分子机制仍不清楚。cazal - debat等人在《自然》杂志上发表的文章弥补了这一认识上的空白,并对果蝇的神经元、受体和信号级联提供了显著的机制和功能见解,这些神经元、受体和信号级联调节着果蝇生存和繁殖之间的取舍。通过性危险冲突分析,作者证明,尽管雄性果蝇在早期阶段会根据危险提示中止求偶,但随着求偶的进行和交配的可能性越来越大,它们越来越无视视觉威胁。最初的失败反应似乎是由LC16神经元的视觉激活调节的,LC16神经元随后打开5-HTPMPD神经元(后内侧背丛中的血清素神经元)并激活血清素的释放;后者抑制P1和plP10神经元,从而关闭了在求偶期间被激活的关键中枢。这使得苍蝇优先考虑生存而不是繁殖。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Balancing reproductive pursuit and visual danger
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来源期刊
Nature Structural & Molecular Biology
Nature Structural & Molecular Biology BIOCHEMISTRY & MOLECULAR BIOLOGY-BIOPHYSICS
CiteScore
22.00
自引率
1.80%
发文量
160
审稿时长
3-8 weeks
期刊介绍: Nature Structural & Molecular Biology is a comprehensive platform that combines structural and molecular research. Our journal focuses on exploring the functional and mechanistic aspects of biological processes, emphasizing how molecular components collaborate to achieve a particular function. While structural data can shed light on these insights, our publication does not require them as a prerequisite.
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