两种转录因子级联调节气味结合蛋白NlOBP8,影响棕色植物跳Nilaparvata lugens中的林纳醇的识别
Ruilin Zhang1, Shuanggang Duan1, Sara Taha Abdelkhalek1,2
1Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China.
Insect science
|July 14, 2025
概括
研究人员发现了两个关键的转录因子,远端无 (Dll) 和无 (al),这些因子控制了棕色植物的气味结合蛋白8 (Obp8) 表达. 这一发现为通过破坏它们的嗅觉行为来管理昆虫害虫提供了新的目标.
科学领域:
- 昆虫的嗅觉是昆虫的嗅觉
- 分子生物学分子生物学
- 转录法规 转录法规
背景情况:
- 昆虫的嗅觉系统对于诸如宿主选择和伴侣识别等行为至关重要.
- 气味结合蛋白 (OBPs) 调解嗅觉信号转导,但它们的基因表达调节还不太清楚.
研究的目的:
- 阐明控制棕色植物 (Nilaparvata lugens) 中NlObp8表达的转录调节机制.
- 为了确定参与调节昆虫的OBPs的转录因子 (TFs).
主要方法:
- 生物信息学和转录基因分析以确定潜在的TF.
- 双露西法酶记者测定和酵母1混合测定以验证TF功能.
- RNA干扰 (RNAi) 来评估TF敲击对基因表达和行为的影响.
主要成果:
- 确定了两种转录级联,其中包括调节NlObp8.8的远程无 (Dll) 和无 (al) TFs.
- 敲除Nlal显著降低了NlObp8的表达,并取消了林纳醇驱逐剂的行为.
- 沉默NlDll导致Nlal表达的减少,这表明了一个调节级联.
结论:
- 涉及直接al结合和间接Dll介导激活的级联调节机制控制了NlObp8的表达.
- 这些发现为破坏农业害虫管理中的嗅觉驱动行为提供了分子标.
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