斑马鱼 (Danio rerio) 的行为现象不被不同肠道微生物群所强调
1Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA.
bioRxiv : the preprint server for biology
|June 10, 2024
概括
在大胆和害羞的斑马鱼之间,肠道微生物没有显著的差异. 这表明稳定的核心肠道微生物组可能会影响斑马鱼的行为,而不依赖于特定的微生物组成.
科学领域:
- 微生物学 微生物学
- 动物行为 动物行为
- 遗传学 是一个遗传学.
背景情况:
- 肠道微生物组在微生物群-肠道-大脑轴中发挥着作用.
- 动物的行为可以受到肠道微生物群落的影响.
- 斑马鱼是研究行为和遗传学的模型生物.
研究的目的:
- 为了研究斑马鱼之间肠道微生物群落的差异,选择性养大胆和害羞的行为.
- 探索肠道微生物组在调节天生的宿主行为中的作用.
主要方法:
- 16S rRNA基因测序用于分析肠道微生物群落.
- 斑马鱼 (Danio rerio) 为不同的行为表型 (大胆和害羞) 进行了选择性繁殖.
- 在行为组之间比较了微生物多样性和社区组成.
主要成果:
- 在大胆和害羞的斑马鱼之间,没有发现肠道微生物多样性或社区组成的显著差异.
- 虽然在统计学上并不显著,但在每个表型中,不同的细菌家族更为丰富.
- 大胆的斑马鱼显示了较高的比较丰富的Burkholderiaceae,Micropepsaceae和Propionibacteriaceae.
- 害羞的斑马鱼表现出较高的比较丰富的贝杰林卡家族,Pirelullacaeae,Rhizobiales_Incertis_Sedis,和Rubinishaeraceae. 这种类型的斑马鱼是最常见的.
结论:
- 肠道微生物组可能不会显著影响斑马鱼的先天行为差异.
- 一个稳定的核心肠道微生物组可能存在于斑马鱼中,无论其行为类型如何.
- 这项研究提供了关于肠道微生物组在规范性动物行为中的作用的基础见解,没有诱导变化.
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