Fig. 6From: Molecular characterization and modulated expression of histone acetyltransferases during cold response of the tick Dermacentor silvarum (Acari: Ixodidae)Effects of RNA interference (RNAi) on cold tolerance in Dermacentor silvarum. A Relative expression of histone acetyltransferase genes after RNAi; B mortality of D. silvarum under a lower lethal temperature treatment after RNAi. Compared to the control group, * indicates a statistical difference using unpaired t-test at P < 0.05 and ** at P < 0.01Back to article page