High-resolution temporal profiling reveals synchronized dynamics of the mouse gut microbiome
Kurokawa, R.; Maskawa, R.; Arakawa, M.; Masuoka, H.; Takayasu, H.; Yoshikawa, Y.; Raihan, T.; Shindo, C.; Kaida, K.; Takagi, M.; Tanokura, M.; De Vlaminck, I.; Takayasu, L.; Takayasu, M.; Suda, W.
Show abstract
The gut microbiome is a highly dynamic ecosystem, yet its temporal organization remains poorly understood because microbiome sampling is typically limited to sparse time points. To overcome this challenge, we developed an automated device to enable continuous fecal sampling from individual mice at minute-to hour-scale resolution. Combining full-length 16S rRNA amplicon sequencing with a limited set of long-read metagenomic references, we economically reconstructed genome- and function-level trajectories at high temporal resolution. Automated hourly sampling over 14 consecutive days enabled phase analysis, revealing collective synchronization of taxa partitioned by carbohydrate utilization strategies between day and night, with microbial taxa and functional genes showing reproducible temporal succession across mice. Perturbations such as cage transfer or antibiotic treatment transiently disrupted this functional synchronization, followed by recovery toward a coherent dynamical state. This system and analytic frameworks will enable us to explore rapid microbiome dynamics in health and disease.
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