The small brown planthopper (SBPH), Laodelphax striatellus, which transmits rice stripe virus (RSV) is one of thenotorious pests of rice plants. To investigate the factors of vector insect responding to virus introduction, the total RNAof RSV-viruliferous SBPHs was subjected to RNA-Seq to analyze the SBPH-RSV interactome. Based on the transcriptomicchanges of RSV carrying SBPHs, eight cDNA sequences possibly related to RSV replication in SBPH were selected,and dsRNAs targeting those sequences were synthesized and applied to SBPH. Three of those dsRNAs showed over 90%of substantial RSV suppression efficiency in SBPH, that demonstrated a potential of RNAi-based virus-vector managementprogram.

• Woo Jin Kim
• Ying Fang
• Yeon Ho Je