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Zhang W, Yang Y, Zhu X, Yang S, Liao X, Li H, Li Z, Liao Q, Tang J, Zhao G, Wu L. Integrated analyses of metabolomics and transcriptomics reveal the potential regulatory roles of long non-coding RNAs in gingerol biosynthesis. BMC Genomics 2023; 24:490. [PMID: 37633894 PMCID: PMC10464350 DOI: 10.1186/s12864-023-09553-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 08/03/2023] [Indexed: 08/28/2023] Open
Abstract
BACKGROUND As the characteristic functional component in ginger, gingerols possess several health-promoting properties. Long non-coding RNAs (lncRNAs) act as crucial regulators of diverse biological processes. However, lncRNAs in ginger are not yet identified so far, and their potential roles in gingerol biosynthesis are still unknown. In this study, metabolomic and transcriptomic analyses were performed in three main ginger cultivars (leshanhuangjiang, tonglingbaijiang, and yujiang 1 hao) in China to understand the potential roles of the specific lncRNAs in gingerol accumulation. RESULTS A total of 744 metabolites were monitored by metabolomics analysis, which were divided into eleven categories. Among them, the largest group phenolic acid category contained 143 metabolites, including 21 gingerol derivatives. Of which, three gingerol analogs, [8]-shogaol, [10]-gingerol, and [12]-shogaol, accumulated significantly. Moreover, 16,346 lncRNAs, including 2,513, 1,225, and 2,884 differentially expressed (DE) lncRNA genes (DELs), were identified in all three comparisons by transcriptomic analysis. Gene ontology enrichment (GO) analysis showed that the DELs mainly enriched in the secondary metabolite biosynthetic process, response to plant hormones, and phenol-containing compound metabolic process. Correlation analysis revealed that the expression levels of 11 DE gingerol biosynthesis enzyme genes (GBEGs) and 190 transcription factor genes (TF genes), such as MYB1, ERF100, WRKY40, etc. were strongly correlation coefficient with the contents of the three gingerol analogs. Furthermore, 7 and 111 upstream cis-acting lncRNAs, 1,200 and 2,225 upstream trans-acting lncRNAs corresponding to the GBEGs and TF genes were identified, respectively. Interestingly, 1,184 DELs might function as common upstream regulators to these GBEGs and TFs genes, such as LNC_008452, LNC_006109, LNC_004340, etc. Furthermore, protein-protein interaction networks (PPI) analysis indicated that three TF proteins, MYB4, MYB43, and WRKY70 might interact with four GBEG proteins (PAL1, PAL2, PAL3, and 4CL-4). CONCLUSION Based on these findings, we for the first time worldwide proposed a putative regulatory cascade of lncRNAs, TFs genes, and GBEGs involved in controlling of gingerol biosynthesis. These results not only provide novel insights into the lncRNAs involved in gingerol metabolism, but also lay a foundation for future in-depth studies of the related molecular mechanism.
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Affiliation(s)
- Wenlin Zhang
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, 402160, China
- College of Food Science, Southwest University, Beibei, 400715, China
| | - Yang Yang
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, College of Agronomy and Biotechnology, Southwest University, Beibei, 400715, China
| | - Xuedong Zhu
- Southeast Chongqing Academy of Agricultural Sciences, Fuling, 408000, China
| | - Suyu Yang
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, College of Agronomy and Biotechnology, Southwest University, Beibei, 400715, China
| | - Ximei Liao
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, College of Agronomy and Biotechnology, Southwest University, Beibei, 400715, China
| | - Honglei Li
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, 402160, China
| | - Zhexin Li
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, 402160, China
| | - Qinhong Liao
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, 402160, China
| | - Jianmin Tang
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, 402160, China.
| | - Guohua Zhao
- College of Food Science, Southwest University, Beibei, 400715, China.
| | - Lin Wu
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, College of Agronomy and Biotechnology, Southwest University, Beibei, 400715, China.
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