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Molecular regulation and domestication of parthenocarpy in cucumber

文献类型: 外文期刊

作者: Nie, Jing 1 ; Huang, Hongyu 3 ; Wu, Sheng 2 ; Lin, Tao 1 ; Zhang, Lidong 3 ; Lv, Lijun 1 ; Shi, Yuzi 1 ; Guo, Yicong 1 ; Zhang, Qian 1 ; Li, Yuhe 3 ; Kong, Weiliang 3 ; Li, Hujian 1 ; Yang, Zhen 1 ; Li, Wenbo 1 ; Xu, Lingjun 1 ; Ma, Nan 1 ; Zhang, Zhonghua 5 ; Sun, Chuanqing 2 ; Sui, Xiaolei 1 ;

作者机构: 1.China Agr Univ, Coll Hort, Beijing Key Lab Growth & Dev Regulat Protected Veg, Beijing, Peoples R China

2.China Agr Univ, Dept Plant Genet & Breeding, Beijing, Peoples R China

3.Tianjin Acad Agr Sci, State Key Lab Vegetable Biobreeding, Tianjin, Peoples R China

4.Tsinghua Univ, Dept Biol Sci & Biotechnol, MOE Key Lab Bioinformat, Beijing, Peoples R China

5.Qingdao Agr Univ, Coll Hort, Engn Lab Genet Improvement Hort Crops Shandong Pro, Qingdao, Peoples R China

6.Hunan Acad Agr Sci, Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha, Peoples R China

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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