文献类型： 外文期刊
作者： Wang, Min 1 ; He, Xiaoming 1 ; Peng, Qin 3 ; Liang, Zhaojun 1 ; Peng, Qingwu 1 ; Liu, Wenrui 1 ; Jiang, Biao 1 ; Xie, Das 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou 510640, Peoples R China
2.Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510640, Peoples R China
3.South China Normal Univ, Sch Life Sci, Guangzhou 510631, Peoples R China
关键词： DEGs; differentially expressed genes; heat stress; RNA-seq
期刊名称：FUNCTIONAL PLANT BIOLOGY （ 影响因子：3.101； 五年影响因子：3.248 ）
ISSN： 1445-4408
年卷期： 2020 年 47 卷 8 期
页码：
收录情况： SCI
摘要： Heat stress is a major environmental factor limiting plant productivity and quality in agriculture. Cucumber, one of the most important vegetables among cucurbitaceae, prefers to grow in a warm environment. Until now the molecular knowledge of heat stress in cucumber remained unclear. In this study, we performed transcriptome analysis using two diverse genetic cucumber cultivars, L-9 and A-16 grown under normal and heat stress. L-9 displayed heat-tolerance phenotype with higher superoxide dismutase enzyme (SOD) enzyme activity and lower malondialdehyde (MDA) content than A-16 under heat stress. RNA-sequencing revealed that a total of 963 and 2778 genes are differentially expressed between L-9 and A-16 under normal and heat stress respectively. In addition, we found that differentially expressed genes (DEGs) associated with plant hormones signally pathway, transcription factors, and secondary metabolites showed significantly change in expression level after heat stress, which were confirmed by quantitative real-time PCR assay. Our results not only explored several crucial genes involved in cucumber heat resistance, but also provide a new insight into studying heat stress.
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