No impact of transgenic cry1C rice on the rove beetle Paederus fuscipes, a generalist predator of brown planthopper Nilaparvata lugens
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Nature Portfolio
Abstract
T1C-19 is newly developed transgenic rice active against lepidopteran pests, and expresses a synthesized cry1C gene driven by the maize ubiquitin promoter. The brown planthopper, Nilaparvata lugens, is a major non-target pest of rice, and the rove beetle (Paederus fuscipes) is a generalist predator of N. lugens nymphs. As P. fuscipes may be exposed to the Cry1C protein through preying on N. lugens, it is essential to assess the potential effects of transgenic cry1C rice on this predator. In this study, two experiments (a direct feeding experiment and a tritrophic experiment) were conducted to evaluate the ecological risk of cry1C rice to P. fuscipes. No significant negative effects were observed
in the development, survival, female ratio and body weight of P. fuscipes in both treatments of direct exposure to elevated doses of Cry1C protein and prey-mediated exposure to realistic doses of the protein. This indicated that cry1C rice had no detrimental effects on P. fuscipes. This work represents the first study of an assessment continuum for the effects of transgenic cry1C rice on P. fuscipes. Use of the rove beetle as an indicator species to assess potential effects of genetically modified crops on nontarget arthropods is feasible.
Description
Full text article. Also available at https://www.nature.com/articles/srep30303
Keywords
Rice, Oryza sativa L, T1C-19, Cry1C rice, Brown planthopper, Nilaparvata lugens, Lepidopteran pests, Insecticides, Chrysoperla sinica, Propylaea japonica
Citation
Meng, J., Mabubu, J. I., Han, Y., He, Y., Zhao, J., Hua, H., ... & Wu, G. (2016). No impact of transgenic cry1C rice on the rove beetle Paederus fuscipes, a generalist predator of brown planthopper Nilaparvata lugens. Scientific Reports, 6(1), 30303.