Developing an efficient and visible prime editing system to restore tobacco 8-hydroxy-copalyl diphosphate gene for labdane diterpene Z-abienol biosynthesis
文献类型： 外文期刊
作者： Zhang, Jianduo 1 ; Zhang, Lu 2 ; Zhang, Chengwei 2 ; Yang, Yongxing 2 ; Liu, Huayin 3 ; Li, Lu 2 ; Zhang, Shengxue 4 ; Li, Xianggan 4 ; Liu, Xinxiang 2 ; Liu, Ya 2 ; Wang, Jin 1 ; Yang, Guangyu 1 ; Xia, Qingyou 5 ; Wang, Weiguang 3 ; Yang, Jinxiao 2 ;
作者机构： 1.Yunnan Acad Tobacco Sci, Yunnan Key Lab Tobacco, Kunming 650231, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Maize DNA Fingerprinting & Mol Bre, Beijing 100089, Peoples R China
3.Yunnan Minzu Univ, Key Lab Nat Prod Synthet Biol Ethn Med Endophytes, State Ethn Affairs Commiss, Kunming 650031, Peoples R China
4.Cropedit Biotechnol Co Ltd, Beijing 102206, Peoples R China
5.Southwest Univ, Biol Sci Res Ctr, Chongqing 400716, Peoples R China
关键词： prime editing; Z-abienol biosynthesis; visible marker; CRISPR; Cas9; tobacco
期刊名称：SCIENCE CHINA-LIFE SCIENCES （ 影响因子：9.1； 五年影响因子：7.1 ）
ISSN： 1674-7305
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Prime editing (PE) is a versatile CRISPR-Cas based precise genome-editing platform widely used to introduce a range of possible base conversions in various organisms. However, no PE systems have been shown to induce heritable mutations in tobacco, nor in any other dicot. In this study, we generated an efficient PE system in tobacco that not only introduced heritable mutations, but also enabled anthocyanin-based reporter selection of transgene-free T-1 plants. This system was used to confer Z-abienol biosynthesis in the allotetraploid tobacco cultivar HHDJY by restoring a G>T conversion in the NtCPS2 gene. High levels of Z-abienol were detected in the leaves of homozygous T-1 plants at two weeks after topping. This study describes an advance in PE systems and expands genome-editing toolbox in tobacco, even in dicots, for use in basic research and molecular breeding. And restoring biosynthesis of Z-abienol in tobacco might provide an efficient way to obtain Z-abienol in plants.
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