Fig. 2.
— (A) Schematic diagram showing the biosynthetic and degradative pathways of ecdysteroids in arthropods (Sin et al 2014; for details, refer to the main text); (B) summary of the presence of ecdysteroid biosynthetic, inactivation, and signaling pathway genes in the investigated arthropods. “+” denotes presence and “−” represents the absence of supporting evidence. Nvd: neverland.