转cry1Ac基因玉米对地表节肢动物群落的影响  

Effects of Transgenic cry1Ac Corns on the Soil Surface Arthropods Communities in Corn Fields

作　　者：陈红星 王仁杰 邵春瑞 旷忠芬 顾俊杰 CHEN Hongxing;WANG Renjie;SHAO Chunrui;KUANG Zhongfen;GU Junjie(College of Agronomy,Sichuan of Agricultural University,Chengdu 611130,China)

机构地区：[1]四川农业大学农学院,成都611130

出　　处：《四川农业大学学报》2022年第1期125-129,共5页Journal of Sichuan Agricultural University

基　　金：四川省特别人才支持计划。

摘　　要：【目的】明确转cry1Ac基因玉米对大田节肢动物群落多样性的影响,为转基因作物的生物安全性评价提供一定的理论依据。【方法】以转cry1Ac基因玉米BT799、非转基因亲本玉米Z58和当地常规品种ZD958为试验材料,采用陷阱法定期调查玉米田间主要节肢动物的种类和发生数量,通过分析比较3个玉米品种田间节肢动物群落、多样性指数、均匀性指数以及优势集中性指数,连续两年调查转基因玉米对田间节肢动物群落多样性的影响。【结果】田间调查发现,玉米地表节肢动物群落整体结构参数变化趋势基本一致且无显著性差异。对比其结构参数动态发现,转cry1Ac玉米物种丰富度、均匀度、优势集中度和多样性指数动态变化较常规对照玉米平缓。【结论】转基因玉米田地表节肢动物群落的稳定性高于非转基因常规玉米,转cry1Ac基因玉米对玉米田地表节肢动物群落无明显影响。【Objective】This study is to assess the effects of transgenic cry1Ac maize BT799 on biodiver⁃sity of arthropod community,which may provide certain theory basis to biosafety evaluation of genetically modified organisms.【Method】In nature fields,the effects of transgenic cry1Ac corn on community of ar⁃thropods were examined using traps method over two years.The species and population of the most com⁃mon arthropod groups were investigated regularly in 3 experimental treatments including transgenic maize BT799 plot,its non-transgenic parent Z58 plot and local corn variety Zhengdan 958 plot.The effects of transgenic maize on the biodiversity of arthropod community were studied by analyzing diversity index,simpson index and pielou index of the whole arthropod community.【Result】The investigation showed that there were no significant differences in common community indices in corn field.The dynamic changes of species richness,evenness,dominant concentration and diversity index of the transgenic cry1Ac corns were more gentle than those of the conventional corns.【Conclusion】The stability of surface arthropod community in the transgenic cry1Ac corns field was higher than that in the conventional corns field,and the transgenic cry1Ac corns had no significant effect on field surface.

关 键 词：转BT基因玉米 节肢动物 群落 群落特征参数 

分 类 号：Q968.1[生物学—昆虫学]