Combined transcriptome and metabolome analysis reveals the mechanism of fruit quality formation in different watermelon (Citrullus lanatus) cultivars,Scientia Horticulturae

当前位置： X-MOL 学术 › Sci. Hortic. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Combined transcriptome and metabolome analysis reveals the mechanism of fruit quality formation in different watermelon (Citrullus lanatus) cultivars
Scientia Horticulturae ( IF 3.9 ) Pub Date : 2024-11-14 , DOI: 10.1016/j.scienta.2024.113797
Zhenzhen Peng, Shuhui Song, Daqi Fu, Jiahua Zhou, Hong Chang, Baogang Wang, Ranran Xu, Chao Zhang, Yunxiang Wang

Fruit characteristics (flesh color, sweetness, flavor, etc.) of watermelon are largely the result of human selection. In this study, we combined the metabolome and transcriptome to investigate differentially expressed genes and differential metabolites related to sugar-acid and flesh color in four commercial watermelon cultivars. Fifty-eight genes and nine metabolites were identified in the organic acid and sugar metabolism pathways. Six of these metabolites were significantly up-regulated in ‘Jingcai No.1’ (JC), including sucrose, fructose, cellobiose, oxaloacetate, succinate, and malate. The expression of sucrose synthase 2 (SUS2), sucrose-phosphate synthase (SPS1), fructose bisphosphate aldolase (FBA2), glyceraldehyde 3-phosphate dehydrogenase(GAPN), trehalose-phosphate phosphatase (TPPJ), trehalose-phosphate synthase (TPS1), 1,4-alpha-glucan-branching (SBE1) and SBE3, which are involved in sugar and acid metabolism, was also significantly higher than that of the other three cultivars. A total of 55 genes and 102 metabolites were identified in the pathway related to flesh color formation (carotenoid synthesis, phenylpropanoid synthesis, flavonoid synthesis). The abundance of genes and metabolites associated with sugar and acid metabolism and color formation were generally lower in ‘Jingmei 2k’ (EK) and ‘L600’ (LB) than in JC and ‘Chaoyue’ (CY). In summary, the omics analysis of the four watermelon cultivars revealed significant differences in metabolic genes and metabolites involved in sugar-acid biosynthesis and flesh color formation, which provides new ideas for improving the quality and commercial value of watermelon fruits through genetic engineering.

更新日期：2024-11-14

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南