Fig. 5

Network of co-occurring bacterial and fungal genera in tobacco leaves during the aging process based on correlation analysis. Networks a and b were constructed for bacterial and fungal genera, respectively, from five periods during the aging process. Only those genera with more than 10 sequences in at least 3 samples were included in the network analysis. A connection represented a statistically significant (P < 0.05) strong positive (Spearman’s r > 0.6) or negative (Spearman’s r < − 0.6) correlation. The node colors indicate the phyla to which each genus belongs, and the node size is proportional to the abundance of taxa. The edges are colored based on interaction types; positive correlations are indicated in red and negative correlations in gray