The circadian oscillator is a complex network of interconnected feedback loops that regulates a wide range of physiological processes. Indeed, variation in clock genes has been implicated in an array of plant environmental adaptations, including growth regulation, photoperiodic control of flowering, and responses to abiotic and biotic stress. Although the clock is buffered against the environment, maintaining roughly 24-h rhythms across a wide range of conditions, it can also be reset by environmental cues such as acute changes in light or temperature. These competing demands may help explain the complexity of the links between the circadian clock network and environmental response pathways. Here, we discuss our current understanding of the clock and its interactions with light and temperature-signaling pathways. We also describe different clock gene alleles that have been implicated in the domestication of important staple crops.

中文翻译：

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植物的昼夜节律。

昼夜节律振荡器是一个复杂的互连反馈回路网络，可调节范围广泛的生理过程。事实上，时钟基因的变异与一系列植物环境适应有关，包括生长调节、开花的光周期控制以及对非生物和生物胁迫的反应。尽管时钟会根据环境进行缓冲，在各种条件下保持大约 24 小时的节律，但它也可以通过环境线索重置，例如光线或温度的急剧变化。这些相互竞争的需求可能有助于解释生物钟网络和环境响应途径之间联系的复杂性。在这里，我们讨论了我们目前对时钟及其与光和温度信号通路的相互作用的理解。