Fig. 3

Comparison of the bacterial community structure of samples from the four countries Principal coordinate analysis based on the weighted (a) and unweighted (b) UniFrac distances (blue = Italy, green = Kalmykia, yellow = Kazakhstan, and red = Belgium). The cluster analysis was performed based on the weighted (c) and unweighted (d) Mahalanobis distances calculated by MANOVA of cheese bacteria communities, “***” represents p < 0.001