Biotechnology Bulletin ›› 2021, Vol. 37 ›› Issue (10): 216-224.doi: 10.13560/j.cnki.biotech.bull.1985.2021-0244

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Review on the Synergistic Insect-resistant Application of RNAi and Bt-transgenic Technologies

DENG Pu-rong(), LIU Yong-bo()   

  1. State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012
  • Received:2021-03-03 Online:2021-10-26 Published:2021-11-12
  • Contact: LIU Yong-bo E-mail:dengpurong1998@163.com;liuyb@craes.org.cn

Abstract:

The cultivation of transgenic insect-resistance crops has decreased the damage of insects on plants and the application of chemical pesticides in the field. However,the long-term continuous cultivation of Bt-transgenic crops worldwide has increased the resistance evolution of target insects to Bt-transgenic plants in the field,leading its long-term insect resistance to be in challenge. To delay the resistance evolution of target insects to Bt proteins and to improve the insect-resistance of transgenic crops,RNAi and Bt-transgenic biotechnologies have been synergistically applied to control agricultural pests. Here,we review the progresses on RNAi technology applied in agricultural pest-control and on the synergistic application of Bt-transgene technology in agricultural pest-control,and discuss the challenges and technological difficulties,aiming to promote the combined application of RNAi and transgenic technologies to be environment-friendly and sustainable in controlling agricultural pests.

Key words: dsRNA, RNA interference, genetically modified crops, pest control