Project description:This a reciprocal transplant experiment. Two hebivorous lepidoptera species (Ostrinia nubilalis and Ostrinia scapulalis) have been fed either their preferred plant (corn for O.nubilalis and Mugwort for O. scapulalis) or the reciprocal plant. At 4th larval instar, RNA was extracted from whole larvae, size selected to enrich in small RNAs and sequenced by Illumina single-end 50bp.