Research Article

Level of CYP4G19 Expression Is Associated with Pyrethroid Resistance in Blattella germanica

Figure 2

mRNA expression of the CYP4G19 gene of German cockroach after RNAi. (a) Semiquantitative RT-PCR analysis of CYP4G19 mRNA levels 2~8 days after dsRNA injection. Gel electrophoresis analysis of PCR products of actin (top band) and CYP4G19 genes (bottom band). (b) Relative mRNA levels after injection of dsRNA1, dsRNA2, dsRNA1+daRNA2, negative control dsRNA, and Ringer saline from day 2 to day 8.