Biomarkers of the main nutritional components in purple rice during five successive grain filling stages

Xiong, Qiangqiang; Lu, Yanyao; Gu, Wenfei; Zhang, Yu; Li, Ao; Cai, Shuo; Zhou, Nianbing

doi:10.1016/j.fochx.2024.101528

Food Chemistry: X

2024

DOI: 10.1016/j.fochx.2024.101528

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Biomarkers of the main nutritional components in purple rice during five successive grain filling stages

Qiangqiang Xiong,

Yanyao Lu,

Wenfei Gu

et al.

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2024

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Cited by 2 publications

References 33 publications

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Transcriptome analysis of the coexpression network of genes related to antioxidant characteristics after grain filling in purple rice

Sun,

Zhu,

Zhu

et al. 2024

Sci Rep

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Antioxidant capacity is an important indicator for evaluating the growth and developmental quality of rice. This study has guiding significance for the cultivation of high-nutrient-value varieties. To investigate the molecular mechanisms underlying the antioxidant characteristics of rice grains after the filling stage, Yangzinuo 1 (YZN1) was used as the experimental material, and grains collected at five different time points (7 days apart) after the filling stage were used for transcriptome sequencing. Through weighted gene coexpression network analysis (WGCNA), a coexpression network of gene weights related to antioxidant characteristics was constructed. LOC_Os10g39140 , LOC_Os10g38276 , and LOC_Os05g45740 were identified from the 2 modules showing the highest correlations with the target traits. GO functional annotation showed that target modules were enriched in pathways related to phenylalanine, flavonoids, and other related pathways, such as GO:0006558, GO:0006559, GO:0009812, and GO:0009813. Correlation analysis with metabolites revealed that differentially expressed genes were significantly enriched in pathways related to antioxidant characteristics and energy metabolism processes, such as glycolysis/gluconeogenesis and flavonoid biosynthesis. The core genes identified in this study were found to be highly correlated with antioxidant characteristics and enriched in pathways related to metabolic and energy pathways and molecular activities. These results provide an effective dataset supporting breeding targeting functional rice characteristics. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-73698-w.

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Transcriptome analysis of the coexpression network of genes related to antioxidant characteristics after grain filling in purple rice

Sun,

Zhu,

Zhu

et al. 2024

Sci Rep

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Energy Deficiency and Misdistribution Leads to Disrupted Formation in Grain Yield and Rice Quality

Wang,

Li,

et al. 2024

IJMS

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With the progress of society and the improvement of agricultural scientific technology, the single focus on high yield for rice production has gradually shifted to high quality. Coordinated development of grain yield and rice quality has become a core issue for researchers, and the underlying mechanisms remain to be solved. Two varieties, Zhongzheyou1 (ZZY1) and Zhongzheyou8 (ZZY8), were used as study materials under field conditions. The yield of ZZY1 was higher than that of ZZY8, which was mainly characterized by a higher seed-setting rate and grain weight. The rice quality of ZZY8 was better than that of ZZY1, primarily due to lower chalkiness and a higher head rice rate. The total dry matter weight of ZZY1 was lower than that of ZZY8, but the proportion of panicle dry matter weight or nonstructural carbohydrate to the total in the former was higher than that of the latter. The maximum grain-filling rate, average grain-filling rate, and key enzyme activities of ZZY1 were significantly higher than those of ZZY8, while the active grain-filling period was shorter than that of ZZY8. Furthermore, the ATP/ATPase content and energy charge values in the grains of ZZY1 were higher than those of ZZY8 at the early grain-filling stage. Transcriptome analysis showed that carbohydrate and energy metabolism were the main ways affecting the yield and quality of the two varieties. The energy production of ZZY1 was insufficient to simultaneously supply the needs thus leading to the discordant formation in its grain yield and rice quality formation.

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Biomarkers of the main nutritional components in purple rice during five successive grain filling stages

Cited by 2 publications

References 33 publications

Transcriptome analysis of the coexpression network of genes related to antioxidant characteristics after grain filling in purple rice

Transcriptome analysis of the coexpression network of genes related to antioxidant characteristics after grain filling in purple rice

Energy Deficiency and Misdistribution Leads to Disrupted Formation in Grain Yield and Rice Quality

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