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Genome-wide identification and expression patterns in response to signals from cadmium of StCADs gene family in potato (Solanum tuberosum L.)

文献类型： 外文期刊

作者： Yang, Xinyu 1 ; Lv, Heping 1 ; Zhang, Wu 1 ; Liang, Hongjie 1 ; Gao, Yanping 1 ; Kang, Yichen 2 ; Wu, Yanbin 1 ; Wang, Fangfang 1 ; Xi, Chunyan 1 ;

作者机构： 1.Gansu Acad Agr Sci, Inst Potato, Lanzhou 730070, Peoples R China

2.Gansu Agr Univ, Coll Hort, Lanzhou 730070, Gansu, Peoples R China

3.Gansu Agr Univ, State Key Lab Aridland Crop Sci, Lanzhou 730070, Gansu, Peoples R China

关键词： Heavy metal stress; CAD family; Bioinformatics analysis; Gene expressive pattern

期刊名称：CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE （ 影响因子：6.6； 五年影响因子：6.6 ）

ISSN：

年卷期： 2024 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Background With the rapid development of the economy and society, soil pollution is becoming more and more serious. Heavy metal cadmium (Cd) pollution is one of the typical problems, which poses a potentially serious threat to crop production and human health. Cinnamyl alcohol dehydrogenase (CAD) is a key enzyme in lignin synthesis and plays an important role in plant resistance to external stress. In this study, combined with bioinformatics analysis and expression pattern analysis, the members of the potato CAD family were identified, and their physical and chemical properties, evolutionary characteristics and chromosome location were clarified, as well as their regulatory effects on Cd tolerance. Results A total of 50 StCAD genes belonging to 6 subfamilies were obtained, and all of them were located in the cytoplasm. Members of the same family had similar gene structures and functional domains. The promoter region of each StCAD family member contains at least 5 or more abiotic stress response elements, indicating that the family had potential functions in regulating stress. According to the expression pattern analysis, most genes in this family were upregulated after Cd stress, further enhanced CAD activity and significantly promoted lignin accumulation in potato roots. Conclusion In summary, the StCAD family plays an important role in potato response to Cd stress. This study lays a foundation for further studies on the functions of the StCAD family and provides candidate genes for Cd resistance molecular breeding in potato.

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