Comparative transcriptome analysis of sweet corn seedlings under low-temperature stress

文献类型： 外文期刊

第一作者： Mao, Jihua

作者： Mao, Jihua;Yu, Yongtao;Yang, Jing;Li, Gaoke;Li, Chunyan;Qi, Xitao;Wen, Tianxiang;Hu, Jianguang

作者机构：

关键词： Maize (Zea mays L.);Low temperature stress;RNA-seq;Cold-responsive gene

期刊名称：CROP JOURNAL （ 影响因子：4.407； 五年影响因子：5.687 ）

ISSN： 2095-5421

年卷期： 2017 年 5 卷 5 期

页码：

收录情况： SCI

摘要： Stress induced by low temperature, which represents a widespread environmental factor, strongly affects maize growth and yield. However, the physiological characteristics and molecular regulatory mechanisms of maize seedlings in response to cold remain poorly understood. In this study, using RNA-seq, we investigated the transcriptome profiles of two sweet corn inbred lines, ?Richao? (RC) and C5, under cold stress. A total of 357 and 455 differentially expressed genes (DEGs) were identified in the RC and C5 lines, respectively, 94 DEGs were detected as common DEGs related to cold response in both genotypes, and a total of 589 DEGs were detected as cold tolerance-associated genes. By combining protein function clustering analysis and significantly enriched Gene Ontology (GO) terms analysis, we suggest that transcription factors may play a dominating role in the cold stress response and tolerance of sweet corn. Furthermore, 74 differentially expressed transcription factors were identified, of those many genes involved in the metabolism and regulation of hormones. These results expand our understanding of the complex mechanisms involved in chilling tolerance in maize, and provide a set of candidate genes for further genetic analyses.(C) 2017 Crop Science of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V.

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