Fig. 5

Schematic diagram and expression profiles of ecdysteroid synthesis and metabolism pathways. a Schematic diagram of ecdysone synthesis and metabolism pathways in B. mori and D. melanogaster. The pathways from BioCyc Database Collection were modified for B. mori and D. melanogaster. Ecdysones were converted from dietary cholesterol, marked in green. A series of well-known synthesis and metabolism enzymes are marked in orange beside catalysates. b The expression changes of seven synthesis enzymes of ecdysteroids and three metabolism enzymes