Transcriptome Analysis Reveals Genes Associated with Flooding Tolerance in Mulberry Plants
文献类型： 外文期刊
作者： Hu, Jingtao 1 ; Duan, Yanyan 1 ; Yang, Junnian 2 ; Gan, Liping 1 ; Chen, Wenjing 1 ; Yang, Jin 1 ; Xiao, Guosheng 1 ; Guan, Lingliang 3 ; Chen, Jingsheng 1 ;
作者机构： 1.Chongqing Three Gorges Univ, Coll Biol & Food Engn, Chongqing 404100, Peoples R China
2.Chongqing Three Gorges Univ, Coll Teacher Educ, Chongqing 404100, Peoples R China
3.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Peoples R China
关键词： mulberry; flooding stress; energy metabolism; ROS signaling; SSR
期刊名称：LIFE-BASEL （ 影响因子：3.2； 五年影响因子：3.2 ）
ISSN：
年卷期： 2023 年 13 卷 5 期
页码：
收录情况： SCI
摘要： Mulberry (Morus alba), a widely distributed economic plant, can withstand long-term flooding stress. However, the regulatory gene network underlying this tolerance is unknown. In the present study, mulberry plants were subjected to submergence stress. Subsequently, mulberry leaves were collected to perform quantitative reverse-transcription PCR (qRT-PCR) and transcriptome analysis. Genes encoding ascorbate peroxidase and glutathione S-transferase were significantly upregulated after submergence stress, indicating that they could protect the mulberry plant from flood damage by mediating ROS homeostasis. Genes that regulate starch and sucrose metabolism; genes encoding pyruvate kinase, alcohol dehydrogenase, and pyruvate decarboxylase (enzymes involved in glycolysis and ethanol fermentation); and genes encoding malate dehydrogenase and ATPase (enzymes involved in the TCA cycle) were also obviously upregulated. Hence, these genes likely played a key role in mitigating energy shortage during flooding stress. In addition, genes associated with ethylene, cytokinin, abscisic acid, and MAPK signaling; genes involved in phenylpropanoid biosynthesis; and transcription factor genes also showed upregulation under flooding stress in mulberry plants. These results provide further insights into the adaptation mechanisms and genetics of submergence tolerance in mulberry plants and could aid in the molecular breeding of these plants.
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