与不可预测的环境保持同步：来自昼夜节律生物学的洞见

摘要(中文译文)

可预测的环境线索，如光照和温度的昼夜与季节周期，在植物和动物中均由生物钟（circadian clocks）整合，以使代谢、生理、生长、发育和行为与一天和一年中的最佳时段相协调。这种时间耦合使生物体能够预判反复出现的环境变化，并维持内部生物过程与外部环境之间的适应性对齐。然而，环境变化的加速——包括环境变异性的增加和线索可靠性的改变——威胁着这种生物钟对齐，可能破坏各类群中历史上具有益处和适应性的关系。在本综述中，我们提供了关于输出性状生物钟调控的跨类群综合，重点阐述了依赖这种同步作用的保守机制和类群特异性机制。我们提供了关于这些时间调控过程在日益动态且更难预测的环境中可能如何被重塑或受损的背景。

Abstract

Predictable environmental cues, such as daily and seasonal cycles of light and temperature, are integrated by circadian clocks in both plants and animals to coordinate metabolism, physiology, growth, development, and behavior with optimal times of day and year. This temporal coupling enables organisms to anticipate recurring environmental changes and maintain adaptive alignment between internal biological processes and the external environment. However, the accelerating pace of environmental change, including increased environmental variability and altered cue reliability, threatens this circadian alignment, potentially disrupting historically beneficial and adaptive relationships across taxa. In this review, we provide a cross-taxonomic synthesis of circadian regulation of output traits, highlighting conserved and taxa-specific mechanisms that rely on this synchronization. We provide context on how these timing processes may be reshaped or compromised in increasingly dynamic and less predictable environments.

如何引用

Annual review of genetics 的其他文献

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