[Objective]The objectives of this study are to prepare the monoclonal antibody against ecdysone receptors protein and clarity the response of AlEcR-A under exogenous ecdysterone hormone(20E)in Apolygus lucorum.[Method]The vector containing AlEcR-A was double enzyme restricted by Nde I and Xba I,then the cDNA identified by sequencing was constructed to pCzn1 vector and transformed into Arctic express of E.coli.The target recombinant protein has over expressed and has been purified by using Ni-NTA agarose.BAL...