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Transcriptome Profile Analysis of Maize Seedlings in Response to High-salinity, Drought and Cold Stresses by Deep Sequencing

文献类型： 外文期刊

作者： Shan, Xiaohui 1 ; Li, Yidan 2 ; Jiang, Yu 2 ; Jiang, Zhilei 2 ; Hao, Wenyuan 2 ; Yuan, Yaping 1 ;

作者机构： 1.Jilin Univ, Coll Plant Sci, Changchun 130062, Peoples R China

2.Jilin Acad Agr Sci, Agrobiotechnol Res Inst, Changchun 130033, Peoples R China

关键词： Maize;Abiotic stress;Sequencing;Digital gene expression (DGE)

期刊名称：PLANT MOLECULAR BIOLOGY REPORTER （ 影响因子：1.595； 五年影响因子：2.042 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： To identify the crosstalk between gene expression and metabolism in response to cold, drought and salt stresses, digital gene expression (DGE) analysis was performed on maize (Zea mays L.) seedlings subjected to these stresses. A total of 103,953 (70.79 %), 111,130 (68.62 %), 94,435 (69.33 %) and 94,577 (68.92 %) tags were matched to reference genes. The most differentially regulated tags, with a log2 ratio a parts per thousand yen1 or a parts per thousand currency signa'1 (P < 0.01 and FDR a parts per thousand currency sign0.001), were further analysed. Many genes and biological pathways were affected by multiple abiotic stresses. In particular, expression changes for the gibberellin (GA) metabolic genes could improve understanding of the molecular basis of the response of the GA pathway to stress conditions. In addition, a large dataset of tag-mapped transcripts was obtained that provide a strong basis for future research on the response to abiotic stress in maize. And a new list of candidate targets for functional studies on genes involved in cold, drought and salt stresses has been generated. In this study, we revealed complex changes at the transcriptional level in maize seedlings under different abiotic stresses. Such studies could lead to a better understanding of the genetic basis of the maize response to different environmental stimuli and would be essential for improving the abiotic stress tolerance of maize.

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