Analysis of coloration characteristics of Tunisian soft-seed pomegranate arils based on transcriptome and metabolome
文献类型： 外文期刊
第一作者： Yuan, Lei
作者： Yuan, Lei;Niu, Huihui;Yun, Yurou;Tian, Jun;Ren, Dabing;Zhou, Linyan;Lao, Fei;Liao, Xiaojun;Gao, Zhengqing
作者机构：
关键词： Pomegranate arils color; Percent polymeric color; Transcriptome; Metabolome; Color analysis
期刊名称：FOOD CHEMISTRY （ 影响因子：9.231； 五年影响因子：8.795 ）
ISSN： 0308-8146
年卷期： 2022 年 370 卷
页码：
收录情况： SCI
摘要： In this study, combining metabolome and transcriptome, color related attributes and phenolic compositions of Tunisian pomegranate arils from 7 Chinese regions at same developing stage were studied. The total anthocyanin (TAC), flavonoids, and percent polymeric color (PPC) were ranged at 8.93-28.41 mg/100 g arils, 37.55-69.72 mg/100 g arils, and 3.38-21.96%, respectively. In total, 51 phenolic compounds were characterized, most of which were markedly higher in reddish-purple pomegranate arils than those levels in reddish pomegranate arils. In contrast, the accumulation of tannins was significantly higher in reddish pomegranate arils. Among the 49 differentially expressed genes, 8 and 5 genes were matched to beta-glucosidase and peroxidase, respectively. Correlation analysis showed that PPC was negatively correlated with 10 phenolic metabolites and TAC, positively correlated with L*, polymeric color, and 1 gene (|r| > 0.7, p < 0.01). Our results provide new insights for understanding the difference in coloration of pomegranate arils.
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