PGLYRP1 and infection: To answer this question, the authors analyzed the post-infection expression of antimicrobial peptide (AMP) genes such as attacin A, defensine, diptericin, drosocin, drosomycin and genes from Pathogen Recognition Receptor (PRR) signaling pathways such as Pgrp-SA, Pgrp-LC, Pgrp-LB, and imd. The results showed that only the Pgrp-sa and drc expression patterns differed based upon time of infection.