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. 2011 Aug 16;6(8):e23281. doi: 10.1371/journal.pone.0023281

Figure 2. Freshwater aquaria ammonium concentrations and relative thaumarchaeal amoA gene abundances.

Figure 2

AOA amoA gene copies are expressed as a percentage of the total amoA gene copies (per ng DNA). The coefficient of determination (R2) for the linear regression is 0.7249. The associated Pearson correlation coefficient (r) is −0.8518, with an associated p-value of <0.001. See Table S1 for all sample data.