Title |
Redesigning the tomato fruit shape for mechanized production
|
---|---|
Published in |
Nature Plants, September 2023
|
DOI | 10.1038/s41477-023-01522-w |
Pubmed ID | |
Authors |
Qiang Zhu, Lei Deng, Jie Chen, Gustavo R. Rodríguez, Chuanlong Sun, Zeqian Chang, Tianxia Yang, Huawei Zhai, Hongling Jiang, Yasin Topcu, David Francis, Samuel Hutton, Liang Sun, Chang-Bao Li, Esther van der Knaap, Chuanyou Li |
Abstract |
Crop breeding for mechanized harvesting has driven modern agriculture. In tomato, machine harvesting for industrial processing varieties became the norm in the 1970s. However, fresh-market varieties whose fruits are suitable for mechanical harvesting are difficult to breed because of associated reduction in flavour and nutritional qualities. Here we report the cloning and functional characterization of fs8.1, which controls the elongated fruit shape and crush resistance of machine-harvestable processing tomatoes. FS8.1 encodes a non-canonical GT-2 factor that activates the expression of cell-cycle inhibitor genes through the formation of a transcriptional module with the canonical GT-2 factor SlGT-16. The fs8.1 mutation results in a lower inhibitory effect on the cell proliferation of the ovary wall, leading to elongated fruits with enhanced compression resistance. Our study provides a potential route for introducing the beneficial allele into fresh-market tomatoes without reducing quality, thereby facilitating mechanical harvesting. |
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