生物安全学报（中英文）2025，Vol.34Issue(4)：361-368,8.DOI:10.3969/j.issn.2095-1787.20240094
转基因抗虫耐除草剂玉米LP026-2对田间节肢动物群落多样性的影响
Impacts of transgenic insect-resistant and herbicide-tolerant maize LP026-2 on arthropod biodiversity in the field
摘要
Abstract
[Aim]Arthropods play a key ecological role in the field,and the impacts of transgenic crops on the diversity of arthropods are an important part of environmental safety evaluation of transgenic crops.To assess the safety of transgenic maize LP026-2,which expresses cry2Ab,cry1Fa,cry1Ab,and epsps for insect resistance and herbicide tolerance,on arthropods,we investigated the effects of LP026-2 on arthropod diversity in the field.[Method]The transgenic maize LP026-2 and the non-transgenic maize AX808 were planted.From day 10 post establishing to maturity,field surveys were carried out every 7 days by direct observation and pitfall trapping.The effects of LP026-2 on arthropod biodiversity were studied based on the Shannon-Wiener diversity index,Simpson index,and Pielou index.Furthermore,the effects of LP026-2 on the population dynamics of major plant-eating pests and natural enemy insects were analyzed.[Result]Direct observations revealed 718 and 754 individual arthropods in the LP026-2 and AX808 plots,which were categorized into 30 families belonging to 9 orders and 2 classes.Pitfall traps collected 3 057 and 3 597 individual arthropods in the LP026-2 and AX808 plots,which were categorized into 28 families belonging to 12 orders and 5 classes.No significant differences were observed in the composition and abundance of field arthropod groups.The temporal trends of the Shannon-Wiener diversity index,Simpson index,and Pielou index were broadly similar.The population size and dynamics of the major herbivorous pests(Monolepta hieroglyphica,Cicadella viridis,and Trigonotylus caelestialium)were similar between both rice types.The population size and dynamics of the major natural enemy insects(Orius similis,Chrysoperla sinica,and Propylaea japonica)did not differ between the two types.[Conclusion]It is initially believed that the transgenic maize LP026-2,which expresses cry2Ab,cry1Fa,cry1Ab,and epsps,had no safety risk to arthropod diversity.The findings provide key environmental safety data that can inform the regulatory decisions for the commercialization of transgenic maize LP026-2.关键词
转基因玉米/节肢动物/生物多样性/种群动态Key words
transgenic maize/arthropods/biodiversity/population dynamics引用本文复制引用
范千千,杨淑珂,李凡,徐晓辉,郝超峰,孙红炜..转基因抗虫耐除草剂玉米LP026-2对田间节肢动物群落多样性的影响[J].生物安全学报（中英文）,2025,34(4):361-368,8.基金项目
农业生物育种重大项目(2023ZD04062) （2023ZD04062）
