In infected flies, G9a expression varied between fly lines (electronic supplementary material, figure S3A, table 4, Model 6b; line: p = 0.028), and males and females differed in their expression of upd3 following infection, with males showing generally lower upd3 expression, although the magnitude of these sex differences varied between DGRP lines (electronic supplementary material, figure S3B; table 4; Model 8b; sex × line: p = 0.002). This evidence concerns the gene EHMT2 and infection.