Companion website · Science 2016

Population-level analysis of gut microbiome variation

Falony G, Joossens M, Vieira-Silva S, Wang J, Darzi Y, Faust K, Kurilshikov A, Bonder MJ, Valles-Colomer M, Vandeputte D, Tito RY, Chaffron S, Rymenans L, Verspecht C, De Sutter L, Lima-Mendez G, D'hoe K, Jonckheere K, Homola D, Garcia R, Tigchelaar EF, Eeckhaudt L, Fu J, Henckaerts L, Zhernakova A, Wijmenga C, Raes J

Science 352(6285):560–564 (2016) · doi:10.1126/science.aad3503

Supplementary figures, supplementary tables and genus- and OTU-level abundance tables of the Flemish Gut Flora Project (FGFP) cohort, accompanying the population-level analysis of gut microbiome variation. (* equal contribution)

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Supplementary figures

Click a figure to enlarge it. Full-resolution PDFs (and TIFFs where available) can be downloaded.

Figure S1 – Categories of potential microbiome covariates as collected during the FGFP fecal sampling effort

Ring chart wedge sizes reflect the number of potential covariates in each category. Examples of specific metadata are listed, and a complete overview of all features is presented in Table S1.

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Figure S2 – Summary of gut microbiome composition in available western cohorts

Total number of genera comprising the human gut pan-microbiota increasing with (A) numbers of individuals or (B) inclusion of new cohorts included in chronological order. (C) Number of core genera (defined as present in >95% of sampled individuals) decreasing with total number of individuals. (D) Average abundances of FGFP core genera and their corresponding phyla (upper), number of core genera in each phylum for FGFP (middle) and for western population cohorts (lower). Solid lines in (A) and (C) correspond to smoothing spline fits (λ=3). All adult individuals from the following cohorts were included: HMP (14), YS (12), TwinsUK (13), and LLDeep (11).

Figure S3 – Distribution of the abundances of the genera part of the core microbiota

The core microbiota is defined as the list of genera present in at least 95% of the samples in FGFP, LLDeep (11), HMP (14), YS (12), TwinsUK (13), and non-western cohorts combined.

Figure S4 – Difference in richness and in core microbiota abundance according to age and gender in the FGFP

The core microbiota is defined as the genera present in at least 99% of the samples of the FGFP. The core microbiota abundance decreases with age (Spearman correlation; Males: ρ=-0.29, p=6.4e-11; Females: ρ=-0.19, p=4.27e-6) and its richness increases with age (Spearman correlation; Males: ρ=0.27, p=6e-10; Females: ρ=0.08, p=0.037).

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Figure S5 – Visualization of enterotype clustering

Enterotyping was performed according to the original approach of Arumugam et al. (18), with three clusters and two clusters, and the Dirichlet multinomial mixtures (DMM) approach from Holmes et al. (20).

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Figure S6 – Enterotypes distribution over BSS scores

Enterotypes distribution over BSS scores showing an increase in Prevotella-enterotype (community type 3) individuals with looser stool consistency, and decrease in Ruminococcaceae-enterotype (community type 2). (A) Enterotyping performed according to the original approach of Arumugam et al. (18), with 3 clusters (JSD3). (B) Community types defined using the Dirichlet multinomial mixtures (DMM) approach from Holmes et al. (20)..

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Figure S7 – Venn-diagram representation of early-life factors

Number of individuals in the FGFP who were born in a hospital (vs. home), by natural delivery (vs. caesarian section), and who were breastfed (at least one week).

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Figure S8 – Modeling the increment of observed genera with respect to number of samples

Number of genera per sample was calculated from median number of observed genera after 500 times random sampling. The increment (number of new genera observed with more samples) can be modeled as a linear function of the inversed number of individuals. With the current estimation, 16,295 samples are needed to reach lowest estimate of full diversity (744 genera) and 94,178 for the highest estimate of full diversity (824 genera).

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Figure S9 – Taxon abundances in technical replicates and cut-off for major genera

Taxon abundances from three technical replicates of the same samples are plotted against each other (natural log transformed, rarefied at 10,000 reads per sample). When abundance was higher than 40 reads per replicate, the correspondence between replicates was larger than 98%.

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Supplementary tables

FileDescriptionSize
Supplementary_Table1.xlsxMetadata variables collected for the individuals in the FGFP cohort. Name, number of missing values, category,distribution values for continuous variables (mean and standar deviation) and number of classes for categorical variables are provided.44 KBDownload
Supplementary_Table2.xlsxCore microbiota composition. Distribution of genera in FGFP, LLDeep, UK twins, YS, and HMP. Core composition with core microbiota defined as genera present in 95 and 99% of samples, individual cohorts and cohort combinations, western and global.123 KBDownload
Supplementary_Table3.xlsxContributions of genera to community differentiation. Canonical correlation analysis (CCA) on raw and normalized genus abundances. Genus contribution (score) is calculated as the distance from the genus CCA coordinate to the CCA centroid. Larger values indicate higher contributions to community variation.61 KBDownload
Supplementary_Table4.xlsxSummary of covariate redundancy analysis. When redundant covariates (correlations >0.8 or <-0.8) were identified, only the one with the highest correlation to microbiome variation was included in subsequent analyses.12 KBDownload
Supplementary_Table5.xlsxOverview of the 69 covariates identified in the FGFP cohort. For each covariate, the effect size and significance are given (on FGFP cohort and stratified according to gender and age). in addition, as separate categories are 1/2 or 1/3 of original cohort size, we randomly sampled 1/2 or 1/3 of the cohort 100 times, and calculated the frequency (probability) of non-significant correlation for each covariate lower probabilities indicate robust correlations (e.g. stool score), while higher probabilities indicate less robustness and higher dependencies on sample size or lower power.21 KBDownload
Supplementary_Table6.xlsxSummary of significant correlations between major genera/diversity and the 69 covariates. Major genera include 33 genera that have average abundance of >40 reads (see methods), and significant correlations are defined as FDR < 10%.54 KBDownload
Supplementary_Table7.xlsxSummary of optimal generalized linear model for each major genus. Linear models are selected based on significantly correlated factors for each genus, and optimal linear models are selected via glmulti function (see methods). Explainable variations in each genus are given as linear model r2.25 KBDownload
Supplementary_Table8.xlsxSummary of significantly interacting covariates. Interactions are tested using linear model for any two covariates that both correlate to certain genus, and those interaction with <10% FDR rate are defined as siginificant interactions; among the signficant interactions, those involving medications are shown in Figure 7.52 KBDownload
Supplementary_Table9.xlsxSummary of combined effect size of covariate categories. Medication is separated from health information, for each category the maximum correlation to microbial variations (Bray-Curtis dissimilarity) and contributing covariate (identified by "bioenv" function, see methods) are given, as well as maximum correlation coefficient. A final combined effect size is provided for all categories combined.32 KBDownload
Supplementary_Table10.xlsxOverview of the 18 non-redundant FGFP microbiome covariates as identified through stepwise RDA. Independent contributions to microbiome variation (R2). Genera correlating significantly (FDR<0,05) with non-redundant covariates.72 KBDownload
Supplementary_Table11.xlsxSummary of MaAsLin analysis of microbiome variation in function of covariates. Genus-covariate correlations with FDR<0,2 are listed. Non-redundant covariates identified through RDA are identified.63 KBDownload
Supplementary_Table12.xlsxSummary of microbiome variation in function of BSS score. Correlations of alfa-diversity measures, genera, and microbiome covariates with BSS are listed. Analysis of enterotype distribution over BSS scores.47 KBDownload
Supplementary_Table13.xlsxPotential confounder identification in the FGFP for genera-disease associations reported in literature. (Tab1) List of genera-disease associations reported in literature and summary of potential confounders found. (Tab2) Details on confounder identification by correlations between genera abundances and FGFP microbiome covariates.56 KBDownload
Supplementary_Table14.xlsxFor each FABIA bicluster sample group, significantly altered metadata are listed. Significance is assessed with the hypergeometric distribution for binary and categorical data and the two-sided Wilcoxon rank test for numerical data. Metadata among the top factors identified with "envfit" are highlighted in bold.12 KBDownload
Supplementary_Table15.xlsxSummary for matched case-control analyses for medication. (Tab1) Summary of the observed effects of medication on the microbial community from matched case-control analyses. (Tab2) Overview of the effect of amoxicillin usage on abundance of specific genera based on matched case-control analysis.15 KBDownload
Supplementary_Table16.xlsxPower analyses using the FGFP data. (Tab1-2) Dirichlet Multinomial Models-based power analyses to determine minimum sampling size to observe microbiome shifts for the most abundant genera, and the most abundant OTUs, respectively. (Tab3) Obesity-targeted power analysis to compare the sampling size needed to observe obesity-associated shift in microbiome composition, withdifferent study designs and metadata recorded.50 KBDownload
Supplementary_Table17.xlsxOverview of the different blood analyses.38 KBDownload

Abundance tables

Genus table (RDP classifier) and species-level OTUs (UPARSE, non-singletons) table of the FGFP project.

FileDescriptionSize
Supplementary_Table_FGFP_Genus.xlsxGenus-level abundance matrix (RDP classifier).1.6 MBDownload
Supplementary_Table_FGFP_OTU.xlsxSpecies-level OTU abundance matrix (UPARSE, non-singletons).25.5 MBDownload

How to cite

If you use these data, please cite the original publication:

Falony G, Joossens M, Vieira-Silva S, Wang J, Darzi Y, Faust K, Kurilshikov A, Bonder MJ, Valles-Colomer M, Vandeputte D, Tito RY, Chaffron S, Rymenans L, Verspecht C, De Sutter L, Lima-Mendez G, D'hoe K, Jonckheere K, Homola D, Garcia R, Tigchelaar EF, Eeckhaudt L, Fu J, Henckaerts L, Zhernakova A, Wijmenga C, Raes J. Population-level analysis of gut microbiome variation. Science 352(6285):560–564 (2016). https://doi.org/10.1126/science.aad3503

@article{falony2016population,
  title   = {{Population-level analysis of gut microbiome variation}},
  author  = {Falony, G. and Joossens, M. and Vieira-Silva, S. and Wang, J. and Darzi, Y. and Faust, K. and Kurilshikov, A. and Bonder, M. J. and Valles-Colomer, M. and Vandeputte, D. and Tito, R. Y. and Chaffron, S. and Rymenans, L. and Verspecht, C. and De Sutter, L. and Lima-Mendez, G. and D'hoe, K. and Jonckheere, K. and Homola, D. and Garcia, R. and Tigchelaar, E. F. and Eeckhaudt, L. and Fu, J. and Henckaerts, L. and Zhernakova, A. and Wijmenga, C. and Raes, J.},
  journal = {Science},
  year    = {2016},
  volume  = {352},
  number  = {6285},
  pages   = {560--564},
  doi     = {10.1126/science.aad3503}
}

Resources

Article
doi:10.1126/science.aad3503
Project
Vlaams Darmflora Project (VIB)
Original page
raeslab.org/companion/vlaams-darmflora-project.html (archived Raes Lab website)