期刊
CYTOGENETIC AND GENOME RESEARCH
卷 144, 期 3, 页码 243-253出版社
KARGER
DOI: 10.1159/000370172
关键词
Abiotic stress; Aegilops tauschii; Evolutionary analysis; WRKY transcription factor
资金
- National Natural Science Foundation of China [31401452]
- National Key Technology Support Program of China [2013BAD07B14]
- Doctor Initiative Foundation of Henan Normal University [qd13032]
The WRKY transcription factors (TFs) play important roles in responding to abiotic and biotic stress in plants. However, due to its unfinished genome sequencing, relatively few WRKY TFs with full-length coding sequences (CDSs) have been identified in wheat. Instead, the Aegilops tauschii genome, which is the D-genome progenitor of the hexaploid wheat genome, provides important resources for the discovery of new genes. In this study, we performed a bioinformatics analysis to identify WRKY TFs with full-length CDSs from the A. tauschii genome. A detailed evolutionary analysis for all these TFs was conducted, and quantitative real-time PCR was carried out to investigate the expression patterns of the abiotic stress-related WRKY TFs under different abiotic stress conditions in A. tauschii seedlings. A total of 93 WRKY TFs were identified from A. tauschii, and 79 of them were found to be newly discovered genes compared with wheat. Gene phylogeny, gene structure and chromosome location of the 93 WRKY TFs were fully analyzed. These studies provide a global view of the WRKY TFs from A. tauschii and a firm foundation for further investigations in both A. tauschii and wheat. (C) 2015 S. Karger AG, Basel
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