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Chinese Journal of Biological Control ›› 2020, Vol. 36 ›› Issue (6): 954-962.DOI: 10.16409/j.cnki.2095-039x.2020.06.006

• RESEARCH REPORTS • Previous Articles    

Survival Competition and Influence on Arthropod Diversity in Soybean Transgenic with G2-EPSPS and GAT Bivalent Genes

ZHAO Baoguang1, CAO Baoxiang1, LUAN Fengxia2, TAO Bo1, LI Songyu1, LI Rongxing1, LIU Zhangxiong3   

  1. 1. College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
    2. Entry-Exit Inspection and Quarantine Bureau of Heilongjiang Province, Harbin 150001, China;
    3. Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2020-03-30 Published:2021-01-09

Abstract: With the rapid development of transgenic crops in the world, its impact on environmental safety has become a hot topic. The development of genetically modified soybeans in China is still in the experimental research stage. The scientific and rigorous evaluation of the environmental safety of genetically modified soybeans is a strong support for the commercial development of genetically modified soybeans in China. In this study, glyphosate-resistant soybean materials GE-J16 transgenic with G2_EPSPS and GAT bivalent genes and the receptor material Jack and the local main cultivar zhonghuang 37 were used in an environmental safety assessment. The competition ability in the growth period and the difference of breeding ability and survival ability in the mature period of the lines were compared in a field test. The species and number of arthropods were investigated in the fields for 3 consecutive years to analyze the dynamic changes of the diversity index, dominant index and evenness index so as to determine the effects of transgenic and non-transgenic soybean and glyphosate herbicide on the arthropod community diversity in soybean fields. The results showed no significant differences in the plant height, compound leaf number, field coverage, breeding coefficient, and threshing properties among the three soybean varieties at different growth stages. Also, no competitive advantage was evident in cultivation sites. The arthropod diversity index, uniformity index, and dominant index showed a consistent pattern of changes in the three years field tests with genetically modified soybean GE-J16 with artificial weeding, the genetically modified soybean GE-J16 sprayed with glyphosate and the non-transgenic soybean Jack with artificial weeding, and showed no significant difference between the three treatments during the same growth period. These results indicate that glyphosate-tolerant transgenic soybeans and glyphosate herbicide did not cause significant changes in arthropod community diversity in soybean fields.

Key words: transgenic glyphosate-resistant soybean, survival competition, arthropod, weeding, diversity

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