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Impact of Transgenic Cry1Ab/2Aj Maize on Abundance of Non-Target Arthropods in the Field

文献类型： 外文期刊

作者： Yang, Yan 1 ; Chen, Yi 3 ; Xue, Jiabao 1 ; Wang, Yuanyuan 2 ; Song, Xinyuan 6 ; Li, Yunhe 2 ;

作者机构： 1.Hainan Univ, Key Lab Genet & Germplasm Innovat Trop Special Fo, Minist Educ, Coll Forestry, Haikou 570228, Hainan, Peoples R China

2.Chinese Acad Agr Sci, State Key Lab Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

3.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571025, Hainan, Peoples R China

4.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572022, Peoples R China

5.Hainan Yazhou Bay Seed Lab, Sanya 572025, Peoples R China

6.Jilin Acad Agr Sci, Agrobiotechnol Res Inst, Changchun 130033, Peoples R China

关键词： Bacillus thuringiensis; non-target arthropods; biodiversity; community composition; ecological safety assessment

期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）

ISSN：

年卷期： 2022 年 11 卷 19 期

页码：

收录情况： SCI

摘要： Transgenic Bacillus thuringiensis (Bt) maize has broad prospects for application in China. Before commercialization, it is necessary to assess possible ecological impacts, including impacts on non-target arthropods (NTAs) in the field. In the present study, transgenic Bt maize expressing cry1Ab/2Aj and its corresponding non-transformed near isoline were planted under the same environmental and agricultural conditions, and arthropods in the field were collected during the three main growth stages of maize. In a one year trial, the results showed the composition of NTA communities in the transgenic and control maize fields were similar. There were no significant differences for community-level parameters of species richness (S), Shannon-Wiener diversity index (H'), evenness index (J) and Simpson's dominant concentration (C) between the two types of maize fields. Likewise, a Bray-Curtis dissimilarity and distance analysis showed that Cry1Ab/2Aj toxin exposure did not increase community dissimilarities between Bt and non-Bt maize plots and that the structure of the NTAs community was similar on the two maize varieties. Furthermore, planting of the transgenic cry1Ab/2Aj maize did not affect the density or composition of non-target decomposers, herbivores, predators, parasitoids and pollinator guilds. In summary, our results showed that planting of Bt maize producing Cry1Ab/Cry2Aj proteins do not adversely affect population dynamics and diversity of NTAs.

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