Molecular regulation and domestication of parthenocarpy in cucumber

文献类型： 外文期刊

第一作者： Nie, Jing

作者： Nie, Jing;Lin, Tao;Lv, Lijun;Shi, Yuzi;Guo, Yicong;Zhang, Qian;Li, Hujian;Yang, Zhen;Li, Wenbo;Xu, Lingjun;Ma, Nan;Sui, Xiaolei;Nie, Jing;Wu, Sheng;Sun, Chuanqing;Huang, Hongyu;Zhang, Lidong;Li, Yuhe;Kong, Weiliang;Wu, Sheng;Zhang, Zhonghua;Sun, Chuanqing

作者机构：

期刊名称：NATURE PLANTS （ 影响因子：13.6； 五年影响因子：17.0 ）

ISSN： 2055-026X

年卷期： 2025 年

页码：

收录情况： SCI

摘要： Parthenocarpy is a pivotal trait that enhances the yield and quality of fruit crops by enabling the development of seedless fruits. Here we unveil a molecular framework for the regulation and domestication of parthenocarpy in cucumber (Cucumis sativus L.). We previously discovered a natural non-parthenocarpic mutant and demonstrated that the AP2-like transcription factor NON-PARTHENOCARPIC FRUIT 1 (NPF1) is a central regulator of parthenocarpy through activating YUC4 expression and promoting auxin biosynthesis in ovules. A Phe-to-Ser substitution at amino acid residue 7 results in a stable form of NPF1 that is localized in the nucleus. An A-to-G polymorphism (SNP-383) within an NPF1-binding site in the YUC4 promoter significantly enhances the activation of NPF1 towards YUC4, leading to an increased rate of parthenocarpy. Additionally, NPF1 influences bitterness by reducing cucurbitacin C biosynthesis through the suppression of Bt expression. Our results suggest a two-step evolutionary model for parthenocarpy and fruit bitterness during cucumber domestication.

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