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Foxtail millet WRKY genes and drought stress

文献类型: 外文期刊

作者: Zhang, L. 1 ; Shu, H. 2 ; Zhang, A. Y. 3 ; Liu, B. L. 1 ; Xing, G. F. 1 ; Xue, J. A. 1 ; Yuan, L. X. 1 ; Gao, C. Y. 1 ; Li, 1 ;

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

2.Univ Massachusetts, Sch Med, Program Mol Med, Worcester, MA 01605 USA

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

期刊名称:JOURNAL OF AGRICULTURAL SCIENCE ( 影响因子:1.476; 五年影响因子:1.891 )

ISSN: 0021-8596

年卷期: 2017 年 155 卷 5 期

页码:

收录情况: SCI

摘要: Foxtail millet (Setaria italica (L.) P. Beauv.) is a naturally stress-tolerant plant, a major reserve crop and a model for panicoid grasses. The recent completion of the S. italica genome facilitates identification and characterization of WRKY transcription factor family proteins that are important regulators of major plant processes, including growth, development and stress response. The present study identified 103 WRKY transcription factor-encoding genes in the S. italica genome. The genes were named SiWRKY1-SiWRKY103 according to their order on the chromosomes. A comprehensive expression analysis of SiWRKY genes among four different tissues was performed using publicly available RNA sequencing data. Eighty-four SiWRKY genes were more highly expressed in root tissue than in other tissues and nine genes were only expressed in roots. Additionally, real-time quantitative polymerase chain reaction was performed to comprehensively analyse the expression of all SiWRKY genes in response to dehydration. Results indicated that most SiWRKY genes (over 0.8) were up-regulated by drought stress. In conclusion, genome-wide identification and expression profiling of SiWRKY genes provided a set of candidates for cloning and functional analyses in plants' response to drought stress.

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