Figure 9.

Volcano plot illustration of joint FC and P gene selection rule. Genes in sectors A and C are selected as differentially expressed. The colors correspond to the negative log10 P and log2 fold change values: Red: 20 < -log10 P < 50 and 3 < log2 fold < 9 or -9 < log2 fold < -3. Blue: 10 < -log10 P < 50 and 2 < log2 fold < 3 or -3 < log2 fold < -2. Yellow: 4 < -log10 P < 50 and 1 < log2 fold < 2 or -2 < log2 fold < -1. Pink : 10 < -log10 P < 20 and 3 < log2 fold or log2 fold < -3. Light blue: 4 < -log10 P < 10 and 2 < log2 fold or log2 fold < -2. Light green: 2 < -log10 P < 4 and 1 < log2 fold or log2 fold < -1. Gray)

Shi et al. BMC Bioinformatics 2008 9(Suppl 9):S10   doi:10.1186/1471-2105-9-S9-S10