Differentially expressed genes of NG 14 and RUT C30 during lactose induction. (A) Venn diagram indicates the number of genes specific to each strain and the overlap between them. (B) The number of induced or repressed genes during induction by lactose is depicted in a bar chart. It displays the number of induced (red) and repressed (green) genes for the four time points (1, 3, 6 and 24 h) found during the induction in the RUT C30 and NG 14 strains compared to time 0. The differentially expressed genes have been selected using a 5% false discovery rate cut-off and with an absolute log2 fold change greater than 1.