Yan Shao, Cristina Garcia-Mauriño, Simon Clare, Nicholas J R Dawson, Andre Mu, Anne Adoum, Katherine Harcourt, Junyan Liu, Hilary P Browne, Mark D Stares, Alison Rodger, Peter Brocklehurst, Nigel Field, Trevor D Lawley
Human microbiota assembly commences at birth, seeded by both maternal and environmental microorganisms. Ecological theory postulates that primary colonizers dictate microbial community assembly outcomes, yet such microbial priority effects in the human gut remain underexplored. Here using longitudinal faecal metagenomics, we characterized neonatal microbiota assembly for a cohort of 1,288 neonates from the UK. We show that the pioneering neonatal gut microbiota can be stratified into one of three distinct community states, each dominated by a single microbial species and influenced by clinical and host factors, such as maternal age, ethnicity and parity...
September 6, 2024: Nature Microbiology