Functional characterization of thecis‐regulatory region for thevitellogeningene inPlutella xylostella

The vitellogenin gene promoter ( VgP ) is an essential cis ‐regulatory element that plays a significant role in transcription of the vitellogenin ( Vg ) gene, leading to the production of yolk protein in insects, including lepidopterans. However, the function of VgP is still not clear in Plutella xylostella . Here, we cloned a 5.1 kb DNA fragment of the cis ‐regulatory region adjacent to the 5′ end of the Vg gene of P. xylostella ( PxVg ). We...