Genomic Analysis of the Principal Members of Antioxidant Enzymes in Simulated Stresses Response and Postharvest Physiological Deterioration in Cassava
文献类型： 外文期刊
作者： Shang, Sang 1 ; Tang, Yuqi 2 ; Dai, Jing 2 ; Wu, Chunlai 2 ; Yan, Yan 2 ; Tie, Weiwei 2 ; Li, Meiying 2 ; Yang, Jinghao 2 ;
作者机构： 1.Hainan Univ, Sch Life & Pharmaceut Sci, Haikou, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Haikou, Hainan, Peoples R China
3.Shaoguan Univ, Henry Fok Sch Biol & Agr, Shaoguan, Peoples R China
4.Huazhong Univ Sci & Technol, Coll Life Sci & Technol, Key Lab Mol Biophys,Chinese Minist Educ, Chinese Minist Sci & Technol,Genet Engn Int Coope, Wuhan, Peoples R China
5.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya, Peoples R China
6.Chinese Acad Trop Agr Sci, Hainan Inst Trop Agr Resources, Hainan Key Lab Protect & Utilizat Trop Bioresourc, Haikou, Hainan, Peoples R China
关键词： Cassava; Genome wide; SODs; CATs; APXs; Stresses; PPD
期刊名称：TROPICAL PLANT BIOLOGY （ 影响因子：1.512； 五年影响因子：2.011 ）
ISSN： 1935-9756
年卷期： 2021 年 14 卷 4 期
页码：
收录情况： SCI
摘要： ROS act as an signaling molecule in the biological growth and development process. The homeostasis of ROS must be kept by different antioxidant defense mechanisms. Currently, superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) as major antioxidant enzymes are not well understood in cassava (Manihot esculenta). In this research, 7 SODs, 6 CATs, and 6 APXs were identified from the cassava genome by hidden Markov models, which was supported by gene structure, protein motifs, and phylogenetic relationship analyses. SOD, CAT, and APX genes expressed differentially in different tissues of cassava, of which most SODs showed high expression levels. The comprehensive expression profiles revealed the participation of SOD, CAT, APX genes during postharvest physiological deterioration (PPD) of storage root and in response to osmotic stress and ABA as well as Xanthomonas axonopodis infection. Together, this study increases our understanding of cassava SOD, CAT, APX genes feature and their potential function during PPD process and in response to biotic and abiotic stresses in cassava, laying a solid foundation for further gene function analysis in cassava.
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