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Application of Exogenous DNA-Silica Nanoparticles for Generating Genetic Variation in Plants

文献类型： 外文期刊

作者： Li, Ding 2 ; Tang, Jianxin 1 ; Xu, Jianxiong 1 ; Hu, Yuanyi 2 ; Li, Cheng 4 ; Jiang, Jianbing 1 ;

作者机构： 1.Hunan Univ Technol, Key Lab Green Packaging & Applicat Biol Nanotechn, Zhuzhou 412007, Peoples R China

2.Hunan Acad Agr Sci, Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Hunan, Peoples R China

3.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China

4.Zhuzhou Inst Agr Sci, Zhuzhou 412007, Peoples R China

关键词： Rice;Exogenous DNA;Nanoparticle;Genetic Diversity

期刊名称：JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY （ 影响因子：1.134； 五年影响因子：0.999 ）

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年卷期：

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收录情况： SCI

摘要： Heterosis is usually credited for increases in yield or other merits of offspring over parents. In order to widen the genetic variation of cultivated rice (Oryza sativa L.), exogenous genomic DNA extracted from Dongxiang wild rice and Chaling wild rice (Oryza rufipugon G.) was loaded respectively onto the silica nanoparticles coated with poly[styrene-co-N-(4-vinylbenzyl)-N, N-diethylamine] polymer, prior to be transferred into the cultivated rice variety 9311 which was routinely used as a restore line for production of hybrid rice. Results showed that a number of phenotypic variation plants were obtained from the receptor plant 9311 and the variation was mainly reflected in leaf length, width, height of plant, panicle number and its length, spikelet number per panicle, etc. The phenotypic differences between the parents and offspring derivatives were further demonstrated at molecular level by using a total of 200 SSR (simple sequence repeat) markers to confirm genetic polymorphisms among them. Based on allele frequencies obtained by genotypic data, molecular statistical analysis suggested that the introduction of exogenous DNA mediated by silica nanoparticles into a target plant can be a novel approach for producing genetic variation and enriching genetic diversity in the progeny.

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