Figure 9

Relative expression of genes not represented on the array in selected control- (light grey) and LsRXR knock-down-lice (dark grey). Controls are used as calibrators. Confidence intervals (α = 0.05) are shown as error bars. LsRXR is down-regulated about three times by RNAi. Gene expression of genes known to be involved in the ecdysteroid cascade in other arthropods are shown: salmon louse forms of E74, 63E, EcR, HR46, HR38, E75, FTZ-F1, Broad, as well as the lipase Brummer, which is involved in the regulation of lipolysis in drosophila [33] and the gap gene Krueppel. Genes significantly down-regulated (T-test p-value < 0.05) in the knock-down group are marked with *.