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MINI BODY1, encoding a MATE/DTX family transporter, affects plant architecture in mungbean (Vigna radiata L.)

文献类型: 外文期刊

作者: Li, Xin 1 ; Jia, Yahui 1 ; Sun, Mingzhu 1 ; Ji, Zikun 2 ; Zhang, Hui 3 ; Qiu, Dan 1 ; Cai, Qiao 1 ; Xia, Yan 1 ; Yuan, Xingxing 4 ; Chen, Xin 4 ; Shen, Zhenguo 1 ;

作者机构: 1.Nanjing Agr Univ, Coll Life Sci, Nanjing, Peoples R China

2.Nanjing Agr Univ, Coll Agrograssland Sci, Nanjing, Peoples R China

3.Nanjing Agr Univ, Natl Expt Teaching Ctr Plant Prod, Nanjing, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Ind Crops, Nanjing, Jiangsu, Peoples R China

5.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Solid Organ Waste R, Nanjing, Peoples R China

关键词: legume; mungbean; plant architecture; MIB1; MATE; DTX family; RNA-Seq

期刊名称:FRONTIERS IN PLANT SCIENCE ( 影响因子:6.627; 五年影响因子:7.255 )

ISSN: 1664-462X

年卷期: 2022 年 13 卷

页码:

收录情况: SCI

摘要: It has been shown that multidrug and toxic compound extrusion/detoxification (MATE/DTX) family transporters are involved in the regulation of plant development and stress response. Here, we characterized the mini body1 (mib1) mutants in mungbean, which gave rise to increased branches, pentafoliate compound leaves, and shortened pods. Map-based cloning revealed that MIB1 encoded a MATE/DTX family protein in mungbean. qRT-PCR analysis showed that MIB1 was expressed in all tissues of mungbean, with the highest expression level in the young inflorescence. Complementation assays in Escherichia coli revealed that MIB1 potentially acted as a MATE/DTX transporter in mungbean. It was found that overexpression of the MIB1 gene partially rescued the shortened pod phenotype of the Arabidopsis dtx54 mutant. Transcriptomic analysis of the shoot buds and young pods revealed that the expression levels of several genes involved in the phytohormone pathway and developmental regulators were altered in the mib1 mutants. Our results suggested that MIB1 plays a key role in the control of plant architecture establishment in mungbean.

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