Illuminating the circadian clock in monarch butterfly migration
Illuminating the circadian clock in monarch butterfly migration
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DOI：
10.1126/science.1084874
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发表时间：
2003-05-23
期刊：
影响因子：
56.9
通讯作者：
Reppert, SM
中科院分区：
文献类型：
--
作者：
Froy, O;Gotter, AL;Reppert, SM
迁徙的帝王蝶使用时间补偿太阳指南针导航到它们在墨西哥的越冬地。在这里，我们报告说，恒定的光，这扰乱了昼夜节律钟功能在行为和分子水平的君主，也扰乱了飞行导航的时间补偿组成部分。我们进一步表明，紫外线是重要的飞行导航，但不需要光夹带的昼夜节律。追踪这些不同的光输入路径进入大脑应该有助于我们理解成功迁移所必需的时钟-指南针机制。
Migratory monarch butterflies use a time-compensated Sun compass to navigate to their overwintering grounds in Mexico. Here, we report that constant light, which disrupts circadian clock function at both the behavioral and molecular levels in monarchs, also disrupts the time-compensated component of flight navigation. We further show that ultraviolet light is important for flight navigation but is not required for photic entrainment of circadian rhythms. Tracing these distinct light-input pathways into the brain should aid our understanding of the clock-compass mechanisms necessary for successful migration.