Rapid generation of a transgene-free powdery mildew resistant tomato by genome deletion

文献类型： 外文期刊

第一作者： Nekrasov, Vladimir

作者： Nekrasov, Vladimir;Win, Joe;Kamoun, Sophien;Wang, Congmao;Lanz, Christa;Weigel, Detlef;Nekrasov, Vladimir

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： Genome editing has emerged as a technology with a potential to revolutionize plant breeding. In this study, we report on generating, in less than ten months, Tomelo, a non- transgenic tomato variety resistant to the powdery mildew fungal pathogen using the CRISPR/ Cas9 technology. We used wholegenome sequencing to show that Tomelo does not carry any foreign DNA sequences but only carries a deletion that is indistinguishable from naturally occurring mutations. We also present evidence for CRISPR/ Cas9 being a highly precise tool, as we did not detect off- target mutations in Tomelo. Using our pipeline, mutations can be readily introduced into elite or locally adapted tomato varieties in less than a year with relatively minimal effort and investment.

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