在一个跨王国微生物社区的进化过程中出现了增强的代谢纠
Giovanni Scarinci1,2, Jan-Luca Ariens1,2, Georgia Angelidou1
1Max Planck Institute for Terrestrial Microbiology, Marburg, Germany.
Nature communications
|August 22, 2024
概括
实验室进化揭示了微生物群落如何发展相互依存. 选择其他特征间接推动了代谢依赖的演变,塑造了互惠主义.
科学领域:
- 微生物生态学 微生物生态学
- 进化生物学 进化生物学
- 系统生物学 系统生物学
背景情况:
- 互惠主义在自然界中很常见,但从独立的生物体过渡到相互依赖的伙伴是不太了解的.
- 了解伴侣纠的机制对于理解共生进化至关重要.
研究的目的:
- 通过实验进化一个工程微生物社区,观察和跟踪伴侣纠的进展.
- 阐明导致微生物群落相互依赖的分子机制和选择性压力.
主要方法:
- 工程微生物社区在多代人的实验室进化.
- 对代谢相互作用和遗传变化的分子追踪.
- 对监管网络的分析,以确定选择性力量.
主要成果:
- 观察到朝着加强合作伙伴纠和相互依赖的逐步进展.
- 加强了现有的代谢相互作用,并出现了新的代谢相互依赖.
- 通过类和细胞调节网络中的权衡间接选择驱动了纠,而不是群组选择.
结论:
- 结合性特征的间接选择是微生物群落相互进化的重要,被低估的驱动因素.
- 代谢依赖的进化可能是对其他特征的选择的副产品.
- 这项研究为了解自然共生系统中独立性的逐渐侵蚀提供了一个模型.
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