Transcriptomic profiling of wheat stem during meiosis in response to freezing stress

文献类型： 外文期刊

第一作者： Yao, Danyu

作者： Yao, Danyu;Wang, Juan;Peng, Wentao;Zhang, Bowen;Wen, Xiaolan;Wan, Xiaoneng;Wang, Xiuyuan;Li, Xinchun;Sun, Guozhong;Peng, Wentao;Wang, Xiuyuan;Fan, Yinglun;Zhang, Bowen;Ma, Jian;Wen, Xiaolan;Liu, Xiaofen

作者机构： Chinese Acad Agr Sci, Inst Crop Sci, Natl Engn Lab Crop Mol Breeding, Beijing, Peoples R China;Liaocheng Univ, Coll Agr Sci & Engn, Liaocheng, Shandong, Peoples R China;Jilin Agr Univ, Coll Agron, Changchun, Jilin, Peoples R China;Hebei Univ Engn, Coll Landscape & Ecol Engn, Handan, Hebei, Peoples R China

关键词： Triticum aestivum; spring frost injury; transcriptome; hormone signal transduction; transcription factor; cell wall

期刊名称：FRONTIERS IN PLANT SCIENCE （ 2022影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 13 卷

页码：

收录情况： SCI

摘要： Low temperature injury in spring has seriously destabilized the production and grain quality of common wheat. However, the molecular mechanisms underlying spring frost tolerance remain elusive. In this study, we investigated the response of a frost-tolerant wheat variety Zhongmai8444 to freezing stress at the meiotic stage. Transcriptome profiles over a time course were subsequently generated by high-throughput sequencing. Our results revealed that the prolonged freezing temperature led to the significant reductions in plant height and seed setting rate. Cell wall thickening in the vascular tissue was also observed in the stems. RNA-seq analyses demonstrated the identification of 1010 up-regulated and 230 down-regulated genes shared by all time points of freezing treatment. Enrichment analysis revealed that gene activity related to hormone signal transduction and cell wall biosynthesis was significantly modulated under freezing. In addition, among the identified differentially expressed genes, 111 transcription factors belonging to multiple gene families exhibited dynamic expression pattern. This study provided valuable gene resources beneficial for the breeding of wheat varieties with improved spring frost tolerance.

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