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Get Free AccessQuinoa is a dicotyledonous annual herb has cold and drought resistance. However, there is little research on quinoa under waterlogging stress. We analyzed the metabolomics and transcriptomics of Dianli-1299 (waterlogging-resistant strain), Dianli-60, and Yuncaili-2 (non-waterlogging-resistant strains) quinoa seedlings. Through metabolome, we detected a total of 1058 metabolites. And 337, 300, and 386 differential metabolites were found in Dianli-1299, Dianli-60, and Yuncaili-2, respectively. Transcriptome analysis showed increased expression of saccharides and alcohols related genes in Dianli-1299 compared to Dianli-60 and Yuncaili-2. Gene-LOC110708270 and gene-LOC110681806, which were related to UTP-glucose-1-phosphate uridylyltransferase (UGP2), were significantly expressed in Dianli-1299 treatment group, and the regulated galactinol content was significantly accumulated in Dianli-1299 treatment group. Gene-LOC110736796 in Dianli-60 treatment group was significantly higher than that in Dianli-1299 treatment group, and the D-Ribose-5 P content, which is regulated by gene-LOC110736796 was lower in Dianli-60 treatment group than that in Dianli-1299 treatment group. In Dianli-1299, the raffinose content regulated by gene-LOC110707988 and gene-LOC110725594 was higher than that in Dianli-60 and Yuncaili-2. The correlation coefficients of 18 differential metabolites and differential genes were greater than 0.9, which suggested that these genes and metabolites might be key factors for quinoa to cope with waterlogging stress. Our results may provide a basis for breeding and identifying waterlogging-resistant quinoa varieties.
Yirui Guo, Qianchao Wang, Hui Zhang, Tingzhi Huang, Xuesong Zhang, Heng Xie, Junna Liu, Ping Zhang, Li Li, Peng Qin (2022). Responses to waterlogging stress in quinoa seedlings based on metabolomic and transcriptomic analysis. Environmental and Experimental Botany, 203, pp. 105044-105044, DOI: 10.1016/j.envexpbot.2022.105044.
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Type
Article
Year
2022
Authors
10
Datasets
0
Total Files
0
Language
English
Journal
Environmental and Experimental Botany
DOI
10.1016/j.envexpbot.2022.105044
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