隐秘的社区结构和代谢相互作用在 pea aphid 的遗传性学科共生体之间
Linyao Peng1, Jessica Hoban1, Jonah Joffe1
1Department of Biology, Drexel University, Philadelphia, Pennsylvania, USA.
Journal of evolutionary biology
|September 13, 2023
概括
在共生菌株水平上最好理解豆虫微生物群,揭示了Serratia symbiotica和Rickettsiella viridis如何合作提供生物素等必需营养素,形成关键的多方互惠主义.
科学领域:
- 微生物生态学 微生物生态学
- 昆虫与微生物的相互作用
- 这种共生是共生.
背景情况:
- 昆虫有必要的和非必要的遗传微生物,通常在低多样性的血球菌群体中.
- 多种类的共生动物社区引发了关于共生动物之间的协同作用和社区稳定的问题.
- 豆 (Acyrthosiphon pisum) 的共生群体以前已经在物种层面上被定义.
研究的目的:
- 调查共生菌株变异性在豆虫微生物组结构和功能中的作用.
- 探索共生体-共生体协同作用及其对宿主适应的贡献.
- 为了确定宿主内部的代谢相互作用是否能预测常见与罕见的菌株定义的共生动物群体.
主要方法:
- 在美国的豆虫种群中进行了广泛的共生体基因定型.
- 在共生菌株之间代谢互补性的基因组推断.
- 使用宿主和共生体基因组的扩张网络算法的应用.
主要成果:
- 共生菌株的变异性显著影响了豆共感染的趋势.
- 交生菌 Serratia和Rickettsiella viridis 具有很高的合作潜力.
- 这两种共生体对于通过生物生物合成途径扩大全生体代谢至关重要.
结论:
- 在共生菌株水平上,豆虫微生物群更精确地定义了.
- 塞拉提亚共生菌和里克塞塞拉病毒菌之间的合作形成了多方互惠主义,填补了宿主的代谢缺口.
- 了解菌株级相互作用对于破译宿主-共生体相互依赖性和相互主义的演变至关重要.
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