Fig. 1

Geographical location impact on the oral microbiome. a Multivariate redundant discriminant analysis (RDA) plot based on microbiota data at OTU level between countries (Finland vs Spain) and 95% confidence ellipse for each country. b Relative abundances (%) at family levels in each country. c Alpha-diversity measured by Chao 1 index (richness) and Shannon index (diversity). Samples have been rarefied to read depth of 2103 sequences. d Linear discriminant analysis Effect Size (LEfSe) at genus level, showing the genus which most likely explain differences between countries