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Chinese Journal of Biological Control ›› 2022, Vol. 38 ›› Issue (5): 1055-1066.DOI: 10.16409/j.cnki.2095-039x.2022.09.001


Effects of RGDV-Infected Transgenic cry1Ab Rice on the Populations of Nilaparvata lugens(Stål)

MIAO Xin1,2,5,6, LIU Yuxiao1,2,5,6, CHEN Wenle3, GUO Qitang4, YOU Shijun1,2,5,6, LIN Sheng1,2,5,6   

  1. 1. State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops/College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    2. Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross- Strait Crops, Fuzhou 350002, China;
    3. Sanming Plant Protection and inspection station, Sanming 365000, China;
    4. Datian Branch of Sanming Tobacco Company, Sanming, Fujian 366100, China;
    5. Fujian Agricultural Product Safety Research Platform, Fuzhou 350002, China;
    6. Key Laboratory of Green Pest Control, Fujian Province University, Fuzhou 350002, China
  • Received:2022-07-15 Online:2022-10-08 Published:2022-10-20

Abstract: The insect-resistant transgenic cry1Ab rice MF86 and its parental non-transgenic MH3301 rice were tested for the effects of Rice gall dwarf virus(RGDV)-infection of rice on the population of the non-target pest,Nilaparvata lugens (brown planthopper,BPH) under the climate chamber conditions using age-stage two sex life table.It was found that RGDV had no significant effect on the lifespan of BPH population feeding on MH3301,while increased its fecundity;in contrast,RGDV significantly shortened the life span of BPH population feeding on MF86 and reduced its fecundity.Compared with MH3301,healthy MF86 significantly prolonged the longevity and increased the fecundity of BPH population.However,compared with RGDV-infected MH3301,RGDV-infected MF86 significantly decreased the fecundity of BPH population.RGDV-infected MF86 significantly reduced the intrinsic rate of increase,finite rate of increase rate of BPH population,and significantly shortened the generation time;in comparison,RGDV-infected MH3301 had no significant effects on the dynamic parameters of BPH population.The results show that the RGDV-infected transgenic cry1Ab rice (MF86) harbor significantly negative effects on the population proliferation of BPH.

Key words: transgenic insect-resistant rice, rice planthopper, non-target insect, two-sex life table, biosafety

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