动态A-to-IRNA编辑响应蜂蜜蜂的肠道微生物群
Yuange Duan1, Min Huang1, Lin Ye1
1College of Plant Protection, China Agricultural University.
Genome research
|March 4, 2026
概括
肠道细菌,特别是乳酸菌和酸菌,影响蜜蜂大脑中的RNA编辑. 这一发现揭示了肠-大脑轴影响基因表达和潜在的社会昆虫行为.
科学领域:
- 分子生物学分子生物学
- 神经科学是一个神经科学.
- 微生物学 微生物学
背景情况:
- 通过ADAR介导的腺至氨酸 (A-to-I) mRNA编辑增强了动物的蛋白质组多样性和行为复杂性.
- 已知肠道微生物组会影响动物行为,但其通过RNA编辑对肠道与大脑相互作用的作用尚未被探索.
研究的目的:
- 为了研究RNA编辑在肠-大脑相互作用中的参与.
- 探索肠道微生物群对蜜蜂头的A-to-ImRNA编辑的影响.
主要方法:
- 对无菌 (GF) 与常规 (CV) 蜜蜂头进行了比较性转录组分析.
- 识别和量化A-to-I编辑站点和肠道微生物群.
- 在GF蜜蜂中进行细菌殖民实验.
主要成果:
- 确定了1,528个A-to-I编辑站点,其中非同义名的站点占比过高.
- 与CV蜜蜂相比,全球RNA编辑水平在GF蜜蜂中显著下调.
- 艾达尔p.482 Ile>Met自动记录站点显示,GF蜜蜂的编辑减少,并与乳杆菌和Bombilactobacillus丰度呈正相关性.
- 用乳杆菌或米杆菌殖民恢复了Adar p.482 Ile>Met和全球编辑水平在GF蜜蜂中.
结论:
- 肠道细菌,特别是乳酸菌和酸菌,直接影响蜜蜂大脑中的全球RNA编辑水平.
- 一个新的肠道-乳杆菌/Bombilactobacillus-大脑-Adar-全球RNA编辑轴被发现.
- 对RNA编辑的肠道微生物组调制可能有助于社会昆虫的表型可塑性.
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