Figure 2

MA-plots for gene expression data from different comparisons. Log₂ of fold ratios (M) were plotted against the average read counts (A) for the respective locus tag. The ratios were from the LOX analysis, the plots from the classic analysis look similar (data not shown). The log₂ of ratios in which the denominator was zero were set to 20, and the log₂ of ratios in which the numerator was zero were set to −20.