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Efficient Transformation of indica Rice Mediated by Agrobacterium and Generation of NcGDH Transgenic Genic Male-Sterile Rice with High Nitrogen Use Efficiency

作者：

Liu Cong;Dongying Tang;Zhou Zhengkun;Hui Zeng;Xiaochun Hu;Yanning Tan;Qingqing Peng;Yong Deng;Wu Jicai;Yan Wang;Youxin Yang;Dingyang Yuan;Xuanming Liu;Juan Li

单位：

Academy of Seed Industry of Hunan Yahua, Changsha 410001, China;Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, Chin;Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China;State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha 410125, China

关键词：

mediated;generation;high nitrogen;ncgdh;indica rice;ric

摘要：

Although some indica rice varieties have already been transformed by Agrobacterium, there is still great demand of developing transformation system for economically important indica varieties. Here, a fast and efficient method of Agrobacterium- mediated transformation for indica rice was developed, and an NcGDH transgenic genic male-sterile (GMS) indica rice 628S was generated using this method. The regenerated transgenic plantlets can be obtained within three months, and the transformation efficiency achieved about 17%. NcGDH transgenic 628S exhibited an enhanced capacity of ammonium assimilation and more effective panicles under low nitrogen conditions. Moreover, the hybrid rice lines generated by NcGDH transgenic 628S showed 8%?27% yield advantage than those by the non-transgenic 628S. Taken together, these results provide an efficient transformation method for indica rice and an opportunity to improve nitrogen use efficiency (NUE) and the heterosis of hybrid rice.

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Efficient Transformation of indica Rice Mediated by Agrobacterium and Generation of NcGDH Transgenic Genic Male-Sterile Rice with High Nitrogen Use Efficiency

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