Intergenomic Comparisons Highlight Modularity of the Denitrification Pathway and Underpin the Importance of Community Structure for N2O Emissions (original) (raw)
Figure 3
Gene co-occurrence types and habitat preference.
a) Mosaic plot of nirK (K), nirS (S) and nosZ (Z) co-occurrence types across different habitat categories where tile size reflects the number of occurrences and patterns indicate significant overrepresentation (>2) or underrepresentation (<−2) of co-occurrence patterns, as determined by standardized Pearson residuals from χ2 test results (P<0.001). Circles indicate non-occurring combinations. b) The percentage of organisms harboring a nor gene for each combination across the habitat categories. No value indicates non-occurring combinations.