4.8 Article

The dynamics of a family's gut microbiota reveal variations on a theme

期刊

MICROBIOME
卷 2, 期 -, 页码 -

出版社

BMC
DOI: 10.1186/2049-2618-2-25

关键词

Microbiome; Family; Feces; Dynamics; Chronosequence; Community; Development

资金

  1. National Institutes for Health [1R01GM099514, R01HG005975, U19AI090871, P30DK034933]

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Background: It is clear that the structure and function of the human microbiota has significant impact on maintenance of health and yet the factors that give rise to an adult microbiota are poorly understood. A combination of genetics, diet, environment, and life history are all thought to impact the development of the gut microbiome. Here we study a chronosequence of the gut microbiota found in eight individuals from a family consisting of two parents and six children ranging in age from two months to ten years old. Results: Using 16S rRNA gene and metagenomic shotgun sequence data, it was possible to distinguish the family from a cohort of normal individuals living in the same geographic region and to differentiate each family member. Interestingly, there was a significant core membership to the family members' microbiota where the abundance of this core accounted for the differences between individuals. It was clear that the introduction of solids represents a significant transition in the development of a mature microbiota. This transition was associated with increased diversity, decreased stability, and the colonization of significant abundances of Bacteroidetes and Clostridiales. Although the children and mother shared essentially the identical diet and environment, the children's microbiotas were not significantly more similar to their mother than they were to their father. Conclusions: This analysis underscores the complex interactions that give rise to a personalized microbiota and suggests the value of studying families as a surrogate for longitudinal studies.

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