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Transcriptome Profiling Reveals Effects of Drought Stress on Gene Expression in Diploid Potato Genotype P3-198

文献类型： 外文期刊

作者： Yang, Xiaohui 1 ; Liu, Jie 1 ; Xu, Jianfei 1 ; Duan, Shaoguang 1 ; Wang, Qianru 1 ; Li, Guangcun 1 ; Jin, Liping 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Key Lab Biol & Genet Improvement Tuber & Root Cro, Minist Agr & Rural Affairs, Beijing 100081, Peoples R China

2.Shandong Acad Agr Sci, Inst Vegetables & Flowers, Mol Biol Key Lab Shandong Facil Vegetable, Jinan 250100, Shandong, Peoples R China

3.Minist Agr & Rural Affairs, Natl Vegetable Improvement Ctr Shandong Subctr, Huang Huai Hai Reg Sci Observat & Expt Stn Vegtab, Jinan 250100, Shandong, Peoples R China

关键词： potato; diploid; drought; response gene

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）

ISSN： 1422-0067

年卷期： 2019 年 20 卷 4 期

页码：

收录情况： SCI

摘要： Potato (Solanum tuberosum L.) is one of the three most important food crops worldwide; however, it is strongly affected by drought stress. The precise molecular mechanisms of drought stress response in potato are not very well understood. The diploid potato genotype P3-198 has been verified to be highly resistant to drought stress. Here, a time-course experiment was performed to identify drought resistance response genes in P3-198 under polyethylene glycol (PEG)-induced stress using RNA-sequencing. A total of 1665 differentially expressed genes (DEGs) were specifically identified, and based on gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, the transcription factor activity, protein kinase activity, and the plant hormone signal transduction process were significantly enriched. Annotation revealed that these DEGs mainly encode transcription factors, protein kinases, and proteins related to redox regulation, carbohydrate metabolism, and osmotic adjustment. In particular, genes encoding abscisic acid (ABA)-dependent signaling molecules were significantly differentially expressed, which revealed the important roles of the ABA-dependent signaling pathway in the early response of P3-198 to drought stress. Quantitative real-time PCR experimental verification confirmed the differential expression of genes in the drought resistance signaling pathway. Our results provide valuable information for understanding potato drought-resistance mechanisms, and also enrich the gene resources available for drought-resistant potato breeding.

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[1]Transcriptome Profiling Reveals Effects of Drought Stress on Gene Expression in Diploid Potato Genotype P3-198. Yang, Xiaohui,Liu, Jie,Xu, Jianfei,Duan, Shaoguang,Wang, Qianru,Li, Guangcun,Jin, Liping,Yang, Xiaohui,Yang, Xiaohui. 2019

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