Imprecise excision of P{SUPor-P}G9aKG01242 resulting ina deletion of 1850 bp that spans the translation start site of G9a.
G9aDD3 mutant flies succumb more rapidly to Drosophila C virus (DCV) infection than do wild-type controls, but not to Invertebrate iridescent virus 6 (IIV-6) infection.