Transcription factor encoding gene OsC1 regulates leaf sheath color through anthocyanidin metabolism in Oryza rufipogon and Oryza sativa
文献类型: 外文期刊
第一作者: Jiang, Liqun
作者: Jiang, Liqun;Lyu, Shuwei;Yu, Hang;Zhang, Jing;Sun, Bingrui;Liu, Qing;Mao, Xingxue;Chen, Pingli;Pan, Dajian;Chen, Wenfeng;Fan, Zhilan;Li, Chen;Jiang, Liqun;Lyu, Shuwei;Yu, Hang;Zhang, Jing;Sun, Bingrui;Liu, Qing;Mao, Xingxue;Chen, Pingli;Pan, Dajian;Chen, Wenfeng;Fan, Zhilan;Li, Chen;Jiang, Liqun;Lyu, Shuwei;Yu, Hang;Zhang, Jing;Sun, Bingrui;Liu, Qing;Mao, Xingxue;Chen, Pingli;Pan, Dajian;Chen, Wenfeng;Fan, Zhilan;Li, Chen;Jiang, Liqun;Lyu, Shuwei;Yu, Hang;Zhang, Jing;Sun, Bingrui;Liu, Qing;Mao, Xingxue;Chen, Pingli;Pan, Dajian;Chen, Wenfeng;Fan, Zhilan;Li, Chen
作者机构:
关键词: Anthocyanidin; Metabolic genome-wide association study; Leaf sheath color; OsC1; MYB transcription factor
期刊名称:BMC PLANT BIOLOGY ( 影响因子:5.3; 五年影响因子:5.9 )
ISSN: 1471-2229
年卷期: 2024 年 24 卷 1 期
页码:
收录情况: SCI
摘要: Carbohydrates, proteins, lipids, minerals and vitamins are nutrient substances commonly seen in rice grains, but anthocyanidin, with benefit for plant growth and animal health, exists mainly in the common wild rice but hardly in the cultivated rice. To screen the rice germplasm with high intensity of anthocyanidins and identify the variations, we used metabolomics technique and detected significant different accumulation of anthocyanidins in common wild rice (Oryza rufipogon, with purple leaf sheath) and cultivated rice (Oryza sativa, with green leaf sheath). In this study, we identified and characterized a well-known MYB transcription factor, OsC1, through phenotypic (leaf sheath color) and metabolic (metabolite profiling) genome-wide association studies (pGWAS and mGWAS) in 160 common wild rice (O. rufipogon) and 151 cultivated (O. sativa) rice varieties. Transgenic experiments demonstrated that biosynthesis and accumulation of cyanidin-3-Galc, cyanidin 3-O-rutinoside and cyanidin O-syringic acid, as well as purple pigmentation in leaf sheath were regulated by OsC1. A total of 25 sequence variations of OsC1 constructed 16 functional haplotypes (higher accumulation of the three anthocyanidin types within purple leaf sheath) and 9 non-functional haplotypes (less accumulation of anthocyanidins within green leaf sheath). Three haplotypes of OsC1 were newly identified in our germplasm, which have potential values in functional genomics and molecular breeding of rice. Gene-to-metabolite analysis by mGWAS and pGWAS provides a useful and efficient tool for functional gene identification and omics-based crop genetic improvement.
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