The DR group showed increased expression of antimicrobial peptide genes downstream of the Imd (AttA, DptA, CeCA2) and Toll (Def, Toll7, IM2, Drs) pathways in Drosophila 48 hours after infection with S marcescens and E faecalis (Figure 5C and D), indicating that the DR group had greater resistance to bacterial infection. The gene discussed is TLR4; the disease is infection.