温度响应的时空调节是东方蜜蜂体色素的表型可塑性的基础
Shuai Wang1, Lifei Qiu2, Yashuai Wu1
1State Key Laboratory of Agricultural and Forestry Biosecurity, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China.
Insect biochemistry and molecular biology
|December 1, 2025
概括
蜜蜂根据温度调整它们的身体颜色和皮膜厚度,较冷的条件导致更深的颜色和更厚的皮膜,以更好地生存. 这种可塑性是由不同的发育途径和荷尔蒙信号控制的.
科学领域:
- 昆虫生理学和分子生物学.
- 现型可塑性和热适应性
- 发育遗传学和内分泌学
背景情况:
- 温度依赖的身体色彩是一种常见的昆虫特征,但分子机制尚不清楚.
- 东方蜜蜂 (Apis cerana) 显示了与温度相关的季节性颜色变化.
- 了解这些变化是昆虫适应环境变化的关键.
研究的目的:
- 在Apis cerana中研究温度诱导的色彩可塑性的分子基础.
- 阐明特定基因和激素在调节这种适应中的作用.
- 确定这些机制如何在不同的热条件下为生存做出贡献.
主要方法:
- 在不同温度下养蜂以观察表型变化.
- 基因表达分析,包括子 (Hh) 途径和色素基因 (子,树).
- 激素量化 (20-hydroxyecdysone/20E) 和体内激素注射实验.
主要成果:
- 较低的温度诱导了较暗的皮质色素和较厚的皮质,减少了水损失.
- 光运动盲 (omb) 基因调节了条纹图案,而树则控制了色素强度.
- 升高的发育温度增加了20E标位,抑制了色素基因表达.
结论:
- 一个双相机制控制着色素:早期的造型由OMB进行,后来通过20E进行强度调整.
- 这种分层控制允许微调腹部色素以适应热量.
- 研究结果揭示了蜜蜂对环境反应的复杂系统.
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