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Fig. 6 | BMC Evolutionary Biology

Fig. 6

From: Substrate cross-feeding affects the speed and trajectory of molecular evolution within a synthetic microbial assemblage

Fig. 6

The sums of genetic changes acquired by the nitrite (NO2−) producing and reducing clones (one clone each per culture) after 700 generations of evolution at pH 7.5 (weak nitrite toxicity, weak interdependence) or pH 6.5 (strong nitrite toxicity, strong interdependence). The horizontal bar and P-value indicate the outcome from a two-sample Wilcoxon rank-sum test. The star indicates a P-value less than 0.05. Data are presented as Tukey box-plots. The numbers of genetic changes include synonymous and non-synonymous point mutations, insertions, deletions, and multiplications. The sums of genetic changes acquired by the nitrite producing and reducing clones are not significantly different after evolution at pH 7.5 (weak nitrite toxicity, weak interdependence) or pH 6.5 (strong nitrite toxicity, strong interdependence)

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