AI Article Synopsis

  • * The study identified four dsRNase genes and found they are highly expressed in the midgut and older larvae, suggesting their involvement in RNAi efficiency.
  • * An effective delivery method for RNAi was developed using dsRNA encapsulated in liposomes, which reduced the degradation of dsRNA in both the midgut and hemolymph, indicating a promising strategy for improved RNAi applications.

Article Abstract

RNAi is regarded as a promising technology for pest control. However, not all insects are sensitive to RNAi. Studies have confirmed that insect dsRNases are one of key factors affecting RNAi efficiency. In the current study, we identified four genes coding for dsRNases from the genome. Spatial and temporal expression analysis showed that those dsRNases were highly expressed in the midgut and old larvae. Then a delivery method was applied for inducing efficient RNAi based on dsRNA encapsulated by liposome. Furthermore, we assessed degradation efficiency by incubation with dsRNA with gut juice or hemocoel to characterize potential roles of different SfdsRNases after suppression of . The result showed that interferenced with any reduced the degradation of exogenous dsRNA in midgut, interfered with and slowed down the degradation of exogenous dsRNA in hemolymph. Our data suggest the evolutionary expansion and multiple high activity dsRNase genes would take part in the RNAi obstinate in , besides we also provide an efficient RNAi method for better use of RNAi in .

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9117646PMC
http://dx.doi.org/10.3389/fphys.2022.850022DOI Listing

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