环境影响而不是相关性决定了社会哺乳动物肠道微生物群的相似性
Hanna M Bensch1,2, Daniel Lundin1, Conny Tolf1
1Department of Biology and Environmental Science, Centre for Ecology and Evolution in Microbial Model Systems (EEMIS), Linnaeus University, Kalmar, Sweden.
Journal of evolutionary biology
|August 16, 2023
概括
共享的环境,而不是关系,主要是塑造了社会达马拉兰鼠的肠道微生物群相似性. 这凸显了环境因素对同类动物肠道微生物群落的重大影响.
科学领域:
- 微生物学 微生物学
- 生态生态学 生态生态学
- 动物行为 动物行为
背景情况:
- 社会动物经常表现出类似的肠道微生物组.
- 假设这种相似性源于共享的环境或宿主遗传.
- 由于自然环境中的混杂变量,区分这些因素具有挑战性.
研究的目的:
- 调查环境因素和宿主关系对肠道微生物组相似性的相对贡献.
- 解开肠道微生物组合的驱动因素在一个社会物种.
主要方法:
- 在群体生活的达马拉兰鼠 (Fukomys damarensis) 上进行了一项交叉培养实验.
- 使用16S安普利康测序来分析肠道微生物组合.
- 使用受控的实验室条件来隔离环境和相关性影响.
主要成果:
- 共同的环境被确定为肠道微生物组相似性的主要驱动因素.
- 发现宿主相关性对微生物组相似性的影响不那么显著.
- 环境因素掩盖了宿主基因对微生物组成的影响.
结论:
- 环境因素在塑造肠道微生物群相似性方面发挥着更为主导的作用,而不是宿主基因在同物种中发挥着更为主导的作用.
- 研究结果表明,环境影响是社会物种肠道微生物组成的关键驱动因素.
- 这项研究有助于理解社会动物中的微生物群生态.
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