Genome-wide characterization and expression profiling of the NAC genes under abiotic stresses in Cucumis sativus
文献类型: 外文期刊
第一作者: Zhang, Xiao Meng
作者: Zhang, Xiao Meng;Yu, Hong Jun;Sun, Chao;Deng, Jie;Zhang, Xue;Liu, Peng;Li, Yun Yun;Li, Qiang;Jiang, Wei Jie;Sun, Chao;Jiang, Wei Jie
作者机构:
关键词: NAC;Abiotic stress;Hormone;Expression profiling;Cucumber
期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:4.27; 五年影响因子:4.816 )
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年卷期:
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收录情况: SCI
摘要: The NAC (standing for no apical meristem [NAM], Arabidopsis transcription activation factor [ATAF] and cup-shaped cotyledon [CUC]) proteins pertain to one of the plant-specific transcription factor families that play important roles in plant development, abiotic stress resistance and signalling transduction. In the present study, the genomic features of the NAC genes in cucumber were analysed in depth using in silico tools. To reveal a tissue-specific, abiotic stress and hormone-responsive expression profile of CsNAC genes, RT-qPCR was performed under different treatments. Phylogenetic analyses and genome-wide annotation indicated that 82 high-confidence CsNAC genes were clustered into 13 sub-groups with uneven distribution in the cucumber genome. Furthermore, the CsNAC genes exhibited different tissue specific expression patterns in 10 tissues under normal growth conditions, while 13 (16%) and 28 (34%) genes displayed preferential expression in roots and flowers, respectively. Moreover, CsNAC genes were more sensitive to salinity than other stresses; however, their responses were relatively rapid and transient to nutrition deprivation. Several CsNAC genes, including CsNAC35, which is an orthologue of the known stress-responsive Arabidopsis RD26, were identified as highly responsive to abiotic stresses and hormones. Overall, our findings revealed the genomic landscape and expression profiling of the CsNAC genes in response to multiple stresses and hormones, offering clues for further function analyses and molecular breeding. (C) 2017 Elsevier Masson SAS. All rights reserved.
分类号: Q945`Q946
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