Genome-Wide Identification and Expression Analysis of the Starch Synthase Gene Family in Sweet Potato and Two of Its Closely Related Species

被引:0
|
作者
Sun, Zongjian [1 ]
Li, Zhenqin [1 ]
Lin, Xiongjian [1 ]
Hu, Zhifang [1 ]
Jiang, Mengzhen [1 ]
Tang, Binquan [1 ]
Zhao, Zhipeng [1 ]
Xing, Meng [1 ]
Yang, Xiaohui [1 ]
Zhu, Hongbo [1 ]
机构
[1] Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China
基金
中国国家自然科学基金;
关键词
sweet potato; Ipomoea trifida; Ipomoea triloba; starch synthase; abiotic stress; bioinformatic analysis; PHYSICOCHEMICAL PROPERTIES; MAIZE; ENZYMES; STRESS; WHEAT;
D O I
10.3390/genes15040400
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The starch synthase (SS) plays important roles in regulating plant growth and development and responding to adversity stresses. Although the SS family has been studied in many crops, it has not been fully identified in sweet potato and its two related species. In the present study, eight SSs were identified from Ipomoea batatas (I. batata), Ipomoea trifida (I. trifida), and Ipomoea trlioba (I. trlioba), respectively. According to the phylogenetic relationships, they were divided into five subgroups. The protein properties, chromosomal location, phylogenetic relationships, gene structure, cis-elements in the promoter, and interaction network of these proteins were also analyzed; stress expression patterns were systematically analyzed; and real-time polymerase chain reaction (qRT-PCR) analysis was performed. Ipomoea batatas starch synthase (IbSSs) were highly expressed in tuber roots, especially Ipomoea batatas starch synthase 1 (IbSS1) and Ipomoea batatas starch synthase 6 (IbSS6), which may play an important role in root development and starch biosynthesis. At the same time, the SS genes respond to potassium deficiency, hormones, cold, heat, salt, and drought stress. This study offers fresh perspectives for enhancing knowledge about the roles of SSs and potential genes to enhance productivity, starch levels, and resistance to environmental stresses in sweet potatoes.
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页数:19
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