Fig. 6From: Knockdown of five trehalase genes using RNA interference regulates the gene expression of the chitin biosynthesis pathway in Tribolium castaneum Effects on key genes in the chitin biosynthesis pathway after specific RNAi in last-instar larvae at 48 and 72 h. The levels of these genes relative to the Tcβ-actin mRNA level were measured via qRT-PCR. a mRNA levels of glycogen synthase (GS) and glycogen phosphorylase (GP). b mRNA levels of two hexokinases (HK1 and HK2). c mRNA levels of three chitin synthases (CHS1a, CHS1b and CHS2)Back to article page