环境转移和宿主特征对日光浴鱼的皮肤微生物群的影响
Hanna Berggren1, Oscar Nordahl1, Yeşerin Yıldırım1
1Ecology and Evolution in Microbial model Systems, EEMiS Department of Biology and Environmental Science, Linnaeus University, 391 82 Kalmar, Sweden.
Proceedings. Biological sciences
|December 19, 2023
概括
鱼皮肤微生物群的多样性在迁移到新的环境后增加. 这种变异与宿主特征有关,如身体位置和行为,而不是性别或颜色,突出了个体差异如何塑造微生物群落.
科学领域:
- 微生物组研究 微生物组研究
- 水生生态学 水生生态学
- 动物行为 动物行为
背景情况:
- 皮肤微生物组的组成受到宿主物种,地理和息地的影响.
- 在宿主相关的微生物群的内部特异性表型变异的影响还不太清楚.
- 了解这些因素对于理解宿主-微生物相互作用至关重要.
研究的目的:
- 研究宿主环境,表型特征和鱼 (Cyprinus carpio) 皮肤微生物组组成之间的关联.
- 确定从实验室转移到半自然环境如何影响鱼皮肤微生物组.
- 为了确定与微生物群多样性和组成的变化相关的特定表型特征.
主要方法:
- 在转移之前和之后,从鱼个体的背部和腹部皮肤微生物组中重复取样.
- 对与皮肤相关的微生物群落的α和β多样性的分析.
- 微生物组组成与各种表型特征之间的统计关联分析 (身体部位,晒日,息地切换,生长,温度增加,性别,个性,颜色变形).
主要成果:
- 转位显著增加了皮肤微生物群的α和β多样性,特别是在背部部位.
- 微生物组变异与身体位置,日光浴行为,息地切换和生长有显著的关联.
- 在日光浴,性别,个性或颜色变化期间,微生物组组成和温度增加之间没有发现显著的关联.
结论:
- 增加的行为变化和在半自然环境中接触各种殖民者可能推动了微生物群多样性的增加.
- 宿主个体内的表型变化,加上环境变化,显著影响相关微生物群落的多样性和组成.
- 这项研究表明,个人层面的生物多样性与微生物社区结构之间存在层次关系.
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