The gene, expression pattern and subcellular localization of chitin synthase B from the insect Ostrinia furnacalis

► A new cDNA and gDNA of chitin synthase (OfCHSB) from Ostrinia furnacalis was obtained and characterized. ► OfCHSB is indirectly stimulated by ecdysone. ► OfCHSB functions in insect peritrophic matrix according to its transcription pattern during the development. ► OfCHSB localizes in Golgi apparatus.