Following the infection, the expression profiles of some important immune genes in fat body, including four PGRP genes (RfPGRP-LB, RfPGRP-LC, RfPGRP-LE, and RfPGRP-S1), RfRelish, and four AMP genes (RfDefensin, RfColeoptericin, RfAttacin, and RfCecropin), were quantified by RT-qPCR. Here, PGLYRP1 is linked to infection.