A 2-year field trial reveals no significant effects of GM high-methionine soybean on the rhizosphere bacterial communities |
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| Authors: | Jingang Liang Yue Jiao Ying Luan Shi Sun Cunxiang Wu Haiying Wu Mingrong Zhang Haifeng Zhang Xiaobo Zheng Zhengguang Zhang |
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| Institution: | 1.Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests,Ministry of Education,Nanjing,People’s Republic of China;2.Development Center of Science and Technology,Ministry of Agriculture and Rural Affairs,Beijing,People’s Republic of China;3.The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), MOA Key Laboratory of Soybean Biology (Beijing), Institute of Crop Science,The Chinese Academy of Agricultural Sciences,Beijing,People’s Republic of China;4.Nanchong Academy of Agricultural Science,Nanchong,People’s Republic of China |
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| Abstract: | Genetically modified (GM) crops have brought various economic benefits but may also have adversely affected soil microorganisms. To examine whether transgenic high-methionine soybean ZD91 alters the bacterial community structure in the rhizosphere, we performed a 2-year follow-up study using the transgenic high-methionine soybean cultivar ZD91 and wild type cultivar ZD. The community composition and the relative abundance of bacteria in rhizosphere soil were determined by sequencing of the 16S rRNA amplicon. Our results indicated that transgenic soybean ZD91 had no significantly effects on rhizosphere bacterial communities. Instead, the plant growth stage and year appeared to have a stronger effect on bacterial communities. Our findings therefore provided reliable scientific evidence for potential commercial cultivation of cultivar ZD91. |
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