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Genome-wide characterization of the SiDof gene family in foxtail millet (Setaria italica)

文献类型： 外文期刊

作者： Zhang, Li 1 ; Liu, Baoling 1 ; Zheng, Gewen 3 ; Zhang, Aiying 2 ; Li, Runzhi 1 ;

作者机构： 1.Shanxi Agr Univ, Inst Mol Agr & Bioenergy, Taigu 030801, Peoples R China

2.Shanxi Acad Agr Sci, Inst Millet, Changzhi 046011, Peoples R China

3.Agr Dept Shanxi Prov, Seed Management Stn, Taiyuan 030006, Peoples R China

关键词： Setaria italica;Dof transcription factors;Phylogenetic analysis;Expression profiling

期刊名称：BIOSYSTEMS （ 影响因子：1.973； 五年影响因子：2.063 ）

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收录情况： SCI

摘要： Dof (DNA binding with one finger) proteins, which constitute a class of transcription factors found exclusively in plants, are involved in numerous physiological and biochemical reactions affecting growth and development. A genome-wide analysis of SiDof genes was performed in this study. Thirty five SiDof genes were identified and those genes were unevenly distributed across nine chromosomes in the Seteria italica genome. Protein lengths, molecular weights, and theoretical isoelectric points of SiDofs all vary greatly. Gene structure analysis demonstrated that most SiDof genes lack introns. Phylogenetic analysis of SiDof proteins and Dof proteins from Arabidopsis thaliana, rice, sorghum, and Setaria viridis revealed six major groups. Analysis of RNA-Seq data indicated that SiDof gene expression levels varied across roots, stems, leaves, and spike. In addition, expression profiling of SiDof genes in response to stress suggested that SiDof 7 and SiDof 15 are involved in drought stress signalling. Overall, this study could provide novel information on SiDofs for further investigation in foxtail millet. (C) 2016 Elsevier Ireland Ltd. All rights reserved.

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