GenerationofnewglutinousricebyCRISPR/Cas9-targetedmutagenesisoftheWaxygeneinelitericevarieties

被引:1
作者
Jinshan Zhang [1 ,2 ]
Hui Zhang [1 ,3 ]
Jos Ramn Botella [4 ]
JianKang Zhu [1 ,3 ]
机构
[1] Shanghai Center for Plant Stress Biology, and Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences
[2] University of Chinese Academy of Sciences
[3] Department of Horticulture and Landscape Architecture, Purdue University
[4] Plant Genetic Engineering Laboratory, School of Agriculture and Food Sciences, University of Queensland
关键词
Generation of new glutinous rice by CRISPR/Cas9-targeted mutagenesis of the Waxy gene in elite rice varieties; Figure; AC;
D O I
暂无
中图分类号
S511 [稻];
学科分类号
0901 ;
摘要
In rice, amylose content(AC) is controlled by a single dominant Waxy gene. We used Clustered Regularly Interspaced Short Palindromic Repeats(CRISPR)/CRISPR-associated 9(Cas9) to introduce a loss-of-function mutation into the Waxy gene in two widely cultivated elite japonica varieties. Our results show that mutations in the Waxy gene reduce AC and convert the rice into glutinous ones without affecting other desirable agronomic traits, offering an effective and easy strategy to improve glutinosity in elite varieties. Importantly, we successfully removed the transgenes from the progeny. Our study provides an example of generating improved crops with potential for commercialization, by editing a gene of interest directly in elite crop varieties.
引用
收藏
页码:369 / 375
页数:7
相关论文
共 6 条
[1]   A Robust CRISPR/Cas9 System for Convenient, High-Efficiency Multiplex Genome Editing in Monocot and Dicot Plants [J].
Ma, Xingliang ;
Zhang, Qunyu ;
Zhu, Qinlong ;
Liu, Wei ;
Chen, Yan ;
Qiu, Rong ;
Wang, Bin ;
Yang, Zhongfang ;
Li, Heying ;
Lin, Yuru ;
Xie, Yongyao ;
Shen, Rongxin ;
Chen, Shuifu ;
Wang, Zhi ;
Chen, Yuanling ;
Guo, Jingxin ;
Chen, Letian ;
Zhao, Xiucai ;
Dong, Zhicheng ;
Liu, Yao-Guang .
MOLECULAR PLANT, 2015, 8 (08) :1274-1284
[2]  
Field Performance of Transgenic <Emphasis Type="Italic">indica</Emphasis> Hybrid Rice with Improved Cooking and Eating Quality by Down-regulation of <Emphasis Type="Italic">Wx</Emphasis> Gene Expression.[J].Q. Q. Liu;H. X. Yu;X. H. Chen;X. L. Cai;S. Z. Tang;Z. Y. Wang;M. H. Gu.Molecular Breeding.2005, 3
[3]  
Association of <Emphasis Type="Italic">waxy</Emphasis> gene single nucleotide polymorphisms with starch characteristics in rice (<Emphasis Type="Italic">Oryza sativa</Emphasis> L.).[J].Patrick D. Larkin;William D. Park.Molecular Breeding.2003, 4
[4]   Stable inheritance of the antisense Waxy gene in transgenic rice with reduced amylose level and improved quality [J].
Liu, QQ ;
Wang, ZY ;
Chen, XH ;
Cai, XL ;
Tang, SZ ;
Yu, HX ;
Zhang, JL ;
Hong, MM ;
Gu, MH .
TRANSGENIC RESEARCH, 2003, 12 (01) :71-82
[5]  
A naturally occurring functional allele of the rice waxy locus has a GT to TT mutation at the 5′ splice site of the first intron.[J].MasayukiIsshiki;KazukoMorino;MidoriNakajima;Ron J.Okagaki;Susan R.Wessler;TakeshiIzawa;KoShimamoto.The Plant Journal.2002, 1
[6]   Transformation of rice mediated by Agrobacterium tumefaciens [J].
Yukoh Hiei ;
Toshihiko Komari ;
Tomoaki Kubo .
Plant Molecular Biology, 1997, 35 :205-218