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. 2017 Mar 29;8:427. doi: 10.3389/fpls.2017.00427

FIGURE 7.

FIGURE 7

Heatmap showing Spearman’s rank correlations for disease resistance and abundance of antimicrobial genes (A) and for expression levels of antimicrobial genes (B) in 10 representative Swiss agricultural soils with a cereal-oriented cropping history. The abundance of antimicrobial genes is defined as the number of bacterial cells harboring the indicated gene. Significant correlations (p < 0.05) are highlighted with asterisks. The color scale to the right of the matrix indicates rho correlation coefficients.