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Updated: Jul 16, 2025

Individualized Reconstitution of Human Milk Microbiota: A Feasible Approach in Real-World Settings
Published on: February 7, 2025
Deciphering the ecoevolutionary recipe of milk microbiomes
1Molecular and Cell Biology Department, University of Connecticut, Storrs, CT 06269, USA; Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA.
Mammalian milk microbiomes are surprisingly random. Random events significantly influence how these microbial communities assemble and persist within hosts.
Area of Science:
- Microbiology
- Ecology
- Evolutionary Biology
Background:
- Host-associated microbial communities, or microbiomes, play crucial roles in host health and ecology.
- The factors driving microbiome assembly are complex and debated, with both deterministic and stochastic influences proposed.
Purpose of the Study:
- To investigate the assembly processes of mammalian milk microbiomes.
- To determine the relative contribution of stochastic versus deterministic factors in shaping milk microbial communities.
Main Methods:
- Analysis of milk microbiome composition across a diverse range of 47 mammalian species.
- Statistical modeling to differentiate between random and non-random (deterministic) patterns of microbial community assembly.
Main Results:
- Milk microbiome assembly in mammals is predominantly driven by stochastic processes.
- Randomness plays a significant, often underappreciated, role in the establishment and ecological dynamics of host-associated microbiomes.
Conclusions:
- Stochasticity is a key factor in mammalian milk microbiome assembly.
- Future research should consider the impact of random events on microbiome ecology and host-associated microbial communities.
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