气候变化领域集成服务门户(CCPortal): Diurnal oscillations in gut bacterial load and composition eclipse seasonal and lifetime dynamics in wild meerkats

CCPortal

DOI	10.1038/s41467-021-26298-5
	Diurnal oscillations in gut bacterial load and composition eclipse seasonal and lifetime dynamics in wild meerkats
	Risely A.; Wilhelm K.; Clutton-Brock T.; Manser M.B.; Sommer S.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Circadian rhythms in gut microbiota composition are crucial for metabolic function, yet the extent to which they govern microbial dynamics compared to seasonal and lifetime processes remains unknown. Here, we investigate gut bacterial dynamics in wild meerkats (Suricata suricatta) over a 20-year period to compare diurnal, seasonal, and lifetime processes in concert, applying ratios of absolute abundance. We found that diurnal oscillations in bacterial load and composition eclipsed seasonal and lifetime dynamics. Diurnal oscillations were characterised by a peak in Clostridium abundance at dawn, were associated with temperature-constrained foraging schedules, and did not decay with age. Some genera exhibited seasonal fluctuations, whilst others developed with age, although we found little support for microbial senescence in very old meerkats. Strong microbial circadian rhythms in this species may reflect the extreme daily temperature fluctuations typical of arid-zone climates. Our findings demonstrate that accounting for circadian rhythms is essential for future gut microbiome research. © 2021, The Author(s).
语种	英语
scopus关键词	bacterium; digestive system; diurnal activity; high temperature; mammal; metabolism; senescence; wild population; article; bacterial load; circadian rhythm; climate; Clostridium; controlled study; foraging; gastrointestinal tract; human; microbiome; nonhuman; oscillation; seasonal variation; senescence; very elderly; animal; bacterium; biodiversity; biology; circadian rhythm; ecology; genetics; intestine flora; pilot study; season; Bacteria (microorganisms); Clostridium; Microbiota; Suricata suricatta; bacterial DNA; RNA 16S; Animals; Bacteria; Bacterial Load; Biodiversity; Circadian Rhythm; Clostridium; Computational Biology; DNA, Bacterial; Ecology; Gastrointestinal Microbiome; Humans; Pilot Projects; RNA, Ribosomal, 16S; Seasons
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251334
作者单位	Institute for Evolutionary Ecology and Conservation Genomics, Ulm, Germany; Large Animal Research Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom; University of Pretoria, Mammal Research Institute, Pretoria, South Africa; Kalahari Research Trust, Kuruman River Reserve, Northern Cape, South Africa; Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Risely A.,Wilhelm K.,Clutton-Brock T.,et al. Diurnal oscillations in gut bacterial load and composition eclipse seasonal and lifetime dynamics in wild meerkats[J],2021,12(1).
APA	Risely A.,Wilhelm K.,Clutton-Brock T.,Manser M.B.,&Sommer S..(2021).Diurnal oscillations in gut bacterial load and composition eclipse seasonal and lifetime dynamics in wild meerkats.Nature Communications,12(1).
MLA	Risely A.,et al."Diurnal oscillations in gut bacterial load and composition eclipse seasonal and lifetime dynamics in wild meerkats".Nature Communications 12.1(2021).