共同生活的和银鱼表现出一个融合的养生态
Thomas Parmentier1, Rafael Molero-Baltanás2, Catalina Valdivia3
1Department of Biology, Faculty of Sciences, Ghent University, Ghent, Belgium. thomas.parmentier@ugent.be.
BMC biology
|May 28, 2024
概括
与一起生活的共生银鱼适应了他们的饮食,与宿主有显著的重叠. 这种宿主专业化影响了它们的食生态和肠道微生物组合.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 微生物学 微生物学
背景情况:
- 与社会宿主一起生活的动物表现出密切互动的专业特征.
- 交生动物的养生态,特别是那些有社会宿主的动物,还不太清楚.
- 主体在共生关系中的专业化可以推动显著的生态和生理适应.
研究的目的:
- 为了研究与共存的银鱼 (Nicoletiidae家族) 宿主专业化如何影响它们的食生态.
- 为了比较特殊的相关银鱼和一般银鱼的食习惯和肠道微生物组.
- 了解社会宿主在塑造共生无脊椎动物的饮食和微生物群落中的作用.
主要方法:
- 稳定同位素分析 (δ13C和δ15N) 用于分析饮食.
- 饮食实验和肠道剖析以确定食物来源.
- 遗传学重建以了解进化关系.
- 微生物群落特征 (16S rRNA) 用于分析肠道微生物群.
主要成果:
- 梅索专门的Neoasterolepisma银鱼与它们的宿主有显著的同位素重叠,这表明它们的饮食包括植物种子.
- 与它们的宿主相比,一般银鱼具有不同的同位素.
- 梅索特种银鱼在肠道微生物群中表现出更高的细菌密度和更高比例的异发酵乳酸细菌.
- 巢环境影响了特殊银鱼及其宿主的细菌感染 (韦塞拉菌) 概况.
结论:
- 社会宿主,如,是共生动物生态养的关键驱动因素.
- 主体专业化可以导致共生物种和它们的主体之间的饮食趋同.
- 巢环境显著塑造了专门的共生银鱼的微生物组.
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