Figure 4From: Tempo and mode of early gene loss in endosymbiotic bacteria from insectsNon-synonymous substitution rates calculated between E. coli and two free living bacteria (S. typhimurium and Y. pestis) for each loss scenario (A, B, C correspond to gene loss in all, some or none of the symbionts respectively). Global significance of differences between medians was tested by Mann-Whitney tests.Back to article page