The expression profiles of 6 AGO genes(AGO1,AGO2,AGO4,AGO5,AGO7 and AGO10)in different tissues and developmental stages of maize seedling(Zea mays L.inbred line,‘Chang 7-2’)were analyzed by the method of real-time quantitative PCR.Results showed that:(1)AGO1,AGO2,AGO4 and AGO7 were accumulated more in the seedlings at the 5th day after maize seed germination than that at the 8th day,exhibiting more expression in dividing cells and newborn tissues,which indicated that AGO1,AGO2,AGO4 and AGO7 might play roles in meristem of maize seedling at the early stage after germination.(2)AGO5 and AGO10 were only expressed in leaves and shoot tips,AGO5 mainly expressed in the newborn leaves and shoot tip at the 8th day after germination,while AGO10 showed migration in leaves during development.