Genomic analyses of heat stress transcription factors (HSFs) in simulated drought stress response and storage root deterioration after harvest in cassava

文献类型： 外文期刊

第一作者： Zeng, Jian

作者： Zeng, Jian;Liao, Fengfeng;Mo, Jiajia;Wu, Chunlai;Ding, Zehong;Tie, Weiwei;Yan, Yan;Hu, Wei;Ding, Zehong;Tie, Weiwei;Yan, Yan;Hu, Wei;Wang, Cheng;Zeng, Jian

作者机构：

关键词： Cassava; Genome-wide; HSFs; Stress; Postharvest physiological deterioration

期刊名称：MOLECULAR BIOLOGY REPORTS （ 影响因子：2.316； 五年影响因子：2.357 ）

ISSN： 0301-4851

年卷期： 2020 年 47 卷 8 期

页码：

收录情况： SCI

摘要： Heat shock factors (HSFs) play crucial roles in various plant stress responses. However, the current knowledge about HSFs in cassava, an important crop, is still insufficient. In this research, we identified 32 cassavaHSFgenes (MeHSFs) and clustered them into three groups (A, B, C) based on phylogenetic analysis and structural characteristics. Conserved motif analyses showed that MeHSFs display domains characteristic to HSF transcription factors. Gene structure analyses suggested that 29MeHSFscontained only two exons. All identified 32 cassavaMeHSFswere distributed on 13 chromosomes. Their expression profiles revealed that the differentMeHSFswere expressed differentially in different tissues, most high expression genes belonged to group A. The similarMeHSFswere up-regulated after treatment with both PEG and abscisic acid (ABA), which implied that theseMeHSFsmay participate in resistance to simulated drought stress associated with the ABA signaling pathway. In addition, severalMeHSFswere induced during postharvest physiological deterioration (PPD) in cassava. Our results provided basic but important knowledge for future gene function analysis ofMeHSFstoward efforts in improving tolerance to abiotic stress and PPD in cassava.

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