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| Research Progress on Metabolic Regulation of Carotenoids in Sweetpotato (Ipomoea batatas) |
| ZHANG Li1,2, CHEN Feng-Feng1, WANG Hong-Xia1,2,3, LIAO Le-Qin1, ZHANG Peng3, ZHOU Quan-Lu4, KANG Le1,3,* |
1 College of Environmental Science and Engineering, China West Normal University, Nanchong 637002, China;
2 Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China;
3 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China;
4 Nanchong Academy of Agricultural Sciences, Nanchong 637000, China |
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Abstract Carotenoids and apocarotenoids play essential roles in fruit coloration and characteristic aroma formation, plant antioxidant and abiotic stress resistance, as well as in improving human immunity and anti- aging. Sweetpotato (Ipomoea batatas) is the fourth largest food crop in China, revealing the metabolic regulation mechanisms of carotenoids and apocarotinoids in sweetpotato would facilitate the development of high-quality sweetpotato varieties with high nutritional quality, good-looking and wide adaptive to harsh environmental conditions. The complexity of self-incompatibility and partial cross-incompatibility in sweetpotato, results in limitations of traditional hybrid breeding methods in sweetpotato variety improvement and breeding. In this paper, the contents and types of carotenoids in tuberous roots of sweetpotato with different flesh colors were described, the research progress in regulation of carotenoid metabolism-related genes in sweetpotato by molecular biology technology were reviewed, and the possible problems and suggestions in current research on carotenoid metabolism of sweetpotato were summarized. This review provides new ideas for the cultivation of sweetpotato with highly carotenoid-enriched and abiotic stress- resistant sweetpotato.
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Received: 19 August 2022
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Corresponding Authors:
* kangle@cwnu.edu.cn
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