MOA Key Lab of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
Sanya Institute of China Agricultural University, Sanya 572025, China.
Int J Mol Sci. 2024 Aug 5;25(15):8545. doi: 10.3390/ijms25158545.
Amid global climate change featuring erratic temperature fluctuations, insects adapt via seasonal polyphenism, essential for population sustainability and reproductive success. , influenced by environment variations, displays a distinct summer form and winter form distinguished by significant morphological variations. Previous studies have highlighted the role of temperature receptor in orchestrating the transition in response to 10 °C temperature. Nevertheless, the contribution of the transcription factor in this process has remained ambiguous. Here, we aimed to explore the correlation between FoxO () and cold stress responses, while identifying potential energetic substances for monitoring physiological shifts during this transition from summer to winter form under cold stress by using RNAi. Initially, emerges as responsive to low temperatures (10 °C) and is regulated by . Subsequent investigations reveal that facilitates the accumulation of triglycerides and glycogen, thereby influencing the transition from summer form to winter form by affecting cuticle pigment content, cuticle chitin levels, and cuticle thickness. Thus, the knockdown of led to high mortality and failed transition. Overall, our findings demonstrate that governs seasonal polyphenism by regulating energy storage. These insights not only enhance our comprehension of functionality but also offer avenues for environmentally friendly management strategies for .
在全球气候变化导致温度波动不定的情况下，昆虫通过季节性多态性进行适应，这对种群的可持续性和生殖成功至关重要。 ，受环境变化的影响，表现出明显的夏季形态和冬季形态，其形态差异显著。先前的研究强调了温度受体在协调对 10°C 温度变化的反应中的作用。然而，转录因子 在这个过程中的贡献仍然不清楚。在这里，我们旨在通过 RNAi 探索 FoxO()与冷应激反应之间的相关性，同时确定潜在的能量物质，以监测在从夏季形态到冬季形态的这种转变过程中的生理变化。最初， 对低温（10°C）有反应，并受 调节。随后的研究表明， 促进了甘油三酯和糖原的积累，从而通过影响表皮色素含量、表皮几丁质水平和表皮厚度来影响从夏季形态到冬季形态的转变。因此， 的敲低导致高死亡率和转变失败。总的来说，我们的发现表明 通过调节能量储存来控制季节性多态性。这些发现不仅增强了我们对 的功能的理解，还为 提供了环保的管理策略。
