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Biological influence of cry1Ab gene insertion on the endophytic bacteria community, in transgenic rice

文献类型： 外文期刊

作者： Wang, Xu 1 ; Cai, Mengyu 1 ; Zhou, Yu 1 ;

作者机构： 1.Anhui Agr Univ, Sch Tea & Food Sci Technol, State Key Lab Tea Plant Biol & Utilizat, Hefei, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, State Key Lab Breeding Base Zhejiang Sustainable, Agr Minist Key Lab Pesticide Residue Detect,Zheji, Hangzhou, Zhejiang, Peoples R China

关键词： 16S rRNA; community structure; endophytes; transgenic rice

期刊名称：TURKISH JOURNAL OF BIOLOGY （ 影响因子：1.452； 五年影响因子：1.251 ）

ISSN： 1300-0152

年卷期： 2018 年 42 卷 3 期

页码：

收录情况： SCI

摘要： The commercial release of genetically modified (GMO) rice for insect control in China is a subject of debate. Although a series of studies have focused on the safety evaluation of the agroecosystem, the endophytes of transgenic rice are rarely considered. Here, the influence of endophyte populations and communities was investigated and compared for transgenic and nontransgenic rice. Population-level investigation suggested that cry1Ab gene insertion influenced to a varying degree the rice endophytes at the seedling stage, but a significant difference was only observed in leaves of Bt22 (Zhejiang22 transgenic rice) between the GMO and wild-type rice. Community-level analysis using the 16S rRNA gene showed that strains of the phyla Proteobacteria and Firmicutes were the predominant groups occurring in the three transgenic rice plants and their corresponding parents. By contrast, the endophytic communities of Minghui63 and Xiushui11 showed a weaker response to cry1Ab gene insertion than did Zhejiang22, and the community results were consistent with the population-level investigation. The populations and communities of rice endophytes were affected by the cry1Ab gene to a different extent in different rice varieties and plant tissues. The results of this study broaden our understanding of unexpected transgenic influences on nontarget organisms.

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