Jia, R and Zhang, R and Gangurde, S S and Tang, C and Jiang, B and Li, G (2022) Integrated analysis of carotenoid metabolites and transcriptome identifies key genes controlling carotenoid compositions and content in sweetpotato tuberous roots (Ipomoea batatas L.). Frontiers in Plant Science, 13. pp. 1-14. ISSN 1664-462X
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Abstract
Sweetpotato (Ipomoea batatas L.) with different depths of yellow color contains different compositions of carotenoids, which are beneficial for human health. In this study, we performed an integrated analysis of metabolomic and transcriptomic to identify key genes playing a major role in carotenoid coloration in sweetpotato tuberous roots. Herein, 14 carotenoids were identified in five sweetpotatoes. Orange-red and orange cultivars were dominated by β-carotene (385.33 μg/g and 85.07 μg/g), yellow cultivar had a high β-cryptoxanthin (11.23 μg/g), light-yellow cultivar was rich in zeaxanthin (5.12 μg/g), whereas lutein (3.34 μg/g) was the main carotenoid in white cultivar. Furthermore, 27 differentially expressed genes involved in carotenoid metabolism were identified based on comparative transcriptome. Weighted gene co-expression network analysis identified 15 transcription factors highly associated with carotenoid content in sweetpotatoes. These results provide valuable information for revealing the regulatory mechanism of carotenoid metabolism in different-colored sweetpotato tuberous roots.
| Item Type: | Article |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | sweetpotato, coloration, key genes, transcription factor, WGCNA |
| Subjects: | Others > Genetics and Genomics |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 10 Oct 2023 10:47 |
| Last Modified: | 10 Oct 2023 10:47 |
| URI: | http://oar.icrisat.org/id/eprint/12218 |
| Official URL: | https://www.frontiersin.org/articles/10.3389/fpls.... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | This work was supported by National Key R&D Program of China (nos. 2019YFD1000700 and 2019YFD1000701), the earmarked fund for CARS-10-Sweetpotato and the Guangdong Modern Agro-industry Technology Research System (2022KJ111). |
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