Figure 2
Means of log 2 nBGT levels in Buchnera. Genes are split into essential ("E") or non-essential ("nE") genes and predicted to be in putative operons ("Op") or not ("nOp"). The error bars indicate the 95% confidence interval of the mean. After applying the Bonferroni correction for multiple tests, the significant differences obtained by ANOVA and Likelihood ratio tests between two classes of genes are marked with the same symbol: * significant difference between "Op" and "nOp" for "E"; † significant difference between "Op" and "nOp" for "nE"; ‡ significant difference between "E" and "nE" for "Op"; no significant difference was observed between "E" and "nE" for "nOp".