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Table 5 Mantel test of relationship of different gene categories to corresponding environmental variables

From: Microbial functional genes enriched in the Xiangjiang River sediments with heavy metal contamination

Gene category Environmental variable rM P
Arsenic resistant genes Arsenic 0.3243 0.018
Chromium resistant genes Chromium 0.8295 0.001
Copper resistant genes Copper 0.5743 0.017
Mercury resistant genes Mercury 0.8176 0.002
 dsr genes sulfur 0.5172 0.007
 dsr genes all studied metal 0.6927 0.013
  1. The signal intensity of different functional genes among 9 samples was used as the first matrix; normalized related environmental variables were used as the second matrix