Rice OsBT1 regulates seed dormancy through the glycometabolism pathway

文献类型: 外文期刊

第一作者: Song, Weihan

作者: Song, Weihan;Hao, Qixian;Cai, Mengying;Wang, Yihua;Zhu, Xingjie;Liu, Xi;Huang, Yunshuai;Thanhliem Nguyen;Yang, Chunyan;Yu, Jiangfeng;Wu, Hongming;Chen, Liangming;Tian, Yunlu;Jiang, Ling;Wan, Jianmin;Wan, Jianmin;Thanhliem Nguyen

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关键词: Germination; Oryza sativa; OsBT1; Glycometabolism

期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:4.27; 五年影响因子:4.816 )

ISSN: 0981-9428

年卷期: 2020 年 151 卷

页码:

收录情况: SCI

摘要: Seed dormancy and germination in rice (Oryza sativa L.) are complex and important agronomic traits that involve a number of physiological processes and energy. A mutant named h470 selected from a(60)Co-radiated indica cultivar N22 population had weakened dormancy that was insensitive to Gibberellin (GA) and Abscisic acid (ABA). The levels of GA(4) and ABA were higher in h470 than in wild-type (WT) plants. The gene controlling seed dormancy in h470 was cloned by mut-map and transgenesis and confirmed to encode an ADP-glucose transporter protein. A 1 bp deletion in Os02g0202400 (OsBT1) caused the weaker seed dormancy in h470. Metabolomics analyses showed that most sugar components were higher in h470 seeds than the wild type. The mutation in h470 affected glycometabolism.

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