Impacts of transgenic insect-resistant maize HGK60 with Cry1Ah gene on biodiversity of arthropods and weeds in the field.

doi:10.13287/j.1001-9332.202012.031

Abstract

Abstract: Transgenic technology has developed rapidly in recent years. The environmental risk of the release of transgenic organisms is still a key issue. Research on the impacts on biodiversity is an effective way to objectively evaluate the risk. By taking transgenic maize HGK60 with insect-resis-tant gene Cry1Ah and common maize Zheng58 as control, we examined the diversity of arthropods and weeds in spring and winter of 2018 in Hainan Province. 43753 arthropods belonging to 69 species, 19 families, and 7 orders were obtained. There was no significant difference in arthropod community composition, structure and ecological indices between HGK60 and Zheng58. Compared with Zheng58, the transgenic insect-resistant maize HGK60 had obvious resistance to wood boring beetles. 16 species of weeds belonging to 8 families were recorded in the field. There was no significant difference in the density and ecological indices of weeds between HGK60 and Zheng58, with almost the same change trends in the whole growth period. Our results suggested that planting transgenic maize HGK60 with insect-resistant gene Cry1Ah did not affect biodiversity of arthropods and weeds. The results provided scientific support for the further studies of environmental risk of transgenic crops.

Key words: transgenic maize, environmental safety, arthropod, ecological index.

CHEN Yan-jun, GUAN Xiao, REN Meng-yun. Impacts of transgenic insect-resistant maize HGK60 with Cry1Ah gene on biodiversity of arthropods and weeds in the field.[J]. Chinese Journal of Applied Ecology, 2020, 31(12): 4180-4188.

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