The key metabolites associated with nutritional components in purple glutinous rice

Xiong, Qiangqiang; Zhang, Jiao; Shi, Qiang; Zhang, Yanhong; Sun, Changhui; Li, Ao; Liang, Wenjie; Hu, Jinlong; Zhou, Nianbing; Wei, Haiyan; Wang, Shuai; Zhang, Hongcheng; Jun, Zhu

doi:10.1016/j.foodres.2022.111686

Cited by 21 publications

(26 citation statements)

References 32 publications

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“…TY871 and TY398 ( Figure 6 H) were rated as national standard high-quality rice grade two. Previous studies have shown that grain metabolites may be one of the central factors affecting the nutritional quality and eating quality of rice [ 17 , 18 , 19 ]. In this study, NEG_M341T662 metabolites were found to be highly correlated with rice quality ( Figure S6 ), and NEG_M341T662 was highly connected to the core genes Os06g0254300 and Os03g0168100 ( Figure 5 ).…”

Section: Discussionmentioning

confidence: 99%

“…The transcriptome and metabolome have been widely used in rice grain development and rice quality research [ 16 , 17 ]. Metabolites in rice can broadly reflect the overall metabolic state of rice seeds [ 18 ]. Metabolites in grains are the substances produced by rice that are most directly related to the ability to adapt to the environment and have a critical impact on rice quality [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Transcriptome and Metabolome Analysis Provides Insights into the Heterosis of Yield and Quality Traits in Two Hybrid Rice Varieties (Oryza sativa L.)

Zhou

Sun

et al. 2022

IJMS

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Heterosis is a common biological phenomenon that is useful for breeding superior lines. Using heterosis to increase the yield and quality of crops is one of the main achievements of modern agricultural science. In this study, we analysed the transcriptome and metabolome of two three-line hybrid rice varieties, Taiyou 871 (TY871), and Taiyou 398 (TY398) and the parental grain endosperm using RNA-seq (three biological repeats per variety) and untargeted metabolomic (six biological repeats per variety) methods. TY871 and TY398 showed specific heterosis in yield and quality. Transcriptome analysis of the hybrids revealed 638 to 4059 differentially expressed genes in the grain when compared to the parents. Metabolome analysis of the hybrids revealed 657 to 3714 differential grain metabolites when compared to the parents. The honeydew1 and grey60 module core genes Os04g0350700 and Os05g0154700 are involved in the regulation of awn development, grain size, and grain number, as well as the regulation of grain length and plant height, respectively. Rice grain length may be an important indicator for improving the quality of three-line hybrid rice. In addition, the rice quality-related metabolite NEG_M341T662 was highly connected to the module core genes Os06g0254300 and Os03g0168100. The functions of Os06g0254300 and Os03g0168100 are EF-hand calcium binding protein and late embroideries absolute protein repeat containing protein, respectively. These genes may play a role in the formation of rice quality. We constructed a gene and metabolite coexpression network, which provides a scientific basis for the utilization of heterosis in producing high-yield and high-quality hybrid rice.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transcriptome and Metabolome Analysis Provides Insights into the Heterosis of Yield and Quality Traits in Two Hybrid Rice Varieties (Oryza sativa L.)

Zhou

Sun

et al. 2022

IJMS

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“…The amino acid content was determined according to the method of Xiong et al (2022) [12]. The standard curve of amino acids is shown in Table S1.…”

Section: Determination Of Crude Fat Crude Protein Total Sugar and Min...mentioning

confidence: 99%

Metabolites Associated with the Main Nutrients in Two Varieties of Purple Rice Processed to Polished Rice

et al. 2022

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Under the same nitrogen fertilizer and cultivation conditions, the nutrients of rice are strongly affected during the processing of brown rice to polished rice, especially in special rice varieties. In this study, twenty-two amino acids in brown and polished rice of two purple rice varieties were quantified using targeted metabolomics, and the relationships among the main nutrients, mineral elements and metabolites were analysed. The results showed that the amino acid levels in YZN1_H (polished rice of Yangzinuo No. 1) and YZN2_H (polished rice of Yangzinuo No. 2) decreased to different degrees compared with those in YZN1_B (brown rice of Yangzinuo No. 1) and YZN2_B (brown rice of Yangzinuo No. 2). Citric acid is closely associated with amino acids. The total sugar (TS), ATP, and soluble dietary fiber (SDF) levels in YZN1_B decreased by 9.37%, 53.85%, and 75.71%, respectively, compared with those in YZN1_H. The TS, ATP, and SDF levels in YZN2_B decreased significantly by 6.92%, 21.03%, and 76.78%, respectively, compared with those in YZN2_H. Citric acid was significantly negatively correlated with ATP and SDF but significantly positively correlated with carotenoids. The Se content in YZN1_H was significantly higher than that in YZN1_B by 87.02%. The Se content in YZN2_H was significantly higher than that in YZN2_B by 72.02%. Citric acid was significantly positively correlated with Fe, Mn, Ca, and Mg. Citric acid was identified as a candidate key metabolite that affects changes in the main nutrients in purple rice during processing.

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“…In previous research, our team used metabolomic technology and found that the antioxidant capacity of purple rice was higher than that of white rice, and the flavonoids and phenol metabolites were closely related to the antioxidant capacity ( Xiong et al, 2022b ). The metabolites related to the nutritional components of purple rice were further analysed, and the regulatory roles of key metabolites in metabolic pathways were elucidated ( Xiong et al, 2022c ). The effects of processing on the nutritional and metabolic components of purple glutinous rice deserve further study.…”

Section: Introductionmentioning

confidence: 99%

Processing affects (decreases or increases) metabolites, flavonoids, black rice pigment, and total antioxidant capacity of purple glutinous rice grains

et al. 2022

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The key metabolites associated with nutritional components in purple glutinous rice

Cited by 21 publications

References 32 publications

Transcriptome and Metabolome Analysis Provides Insights into the Heterosis of Yield and Quality Traits in Two Hybrid Rice Varieties (Oryza sativa L.)

Transcriptome and Metabolome Analysis Provides Insights into the Heterosis of Yield and Quality Traits in Two Hybrid Rice Varieties (Oryza sativa L.)

Metabolites Associated with the Main Nutrients in Two Varieties of Purple Rice Processed to Polished Rice

Processing affects (decreases or increases) metabolites, flavonoids, black rice pigment, and total antioxidant capacity of purple glutinous rice grains

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