Genome-Wide Identification and Expression Profiling Analysis of the Galactinol Synthase Gene Family in Cassava (Manihot esculenta Crantz)

文献类型： 外文期刊

第一作者： Li, Ruimei

作者： Li, Ruimei;Yuan, Shuai;He, Yingdui;Fan, Jie;Zhou, Yangjiao;Qiu, Tingting;Lin, Xuejun;Yao, Yuan;Liu, Jiao;Fu, Shaoping;Guo, Jianchun;Yuan, Shuai;Fan, Jie;Zhou, Yangjiao;Qiu, Tingting;Lin, Xuejun;Hu, Xinwen;Guo, Jianchun;He, Yingdui

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关键词： galactinol synthase; gene expression pattern; abiotic stress; Manihot esculenta; cassava

期刊名称：AGRONOMY-BASEL （ 影响因子：3.417； 五年影响因子：3.64 ）

ISSN： 2073-4395

年卷期： 2018 年 8 卷 11 期

页码：

收录情况： SCI

摘要： Galactinol synthases (GolSs) are the key enzymes that participate in raffinose family oligosaccharides (RFO) biosynthesis, which perform a big role in modulating plant growth and response to biotic or abiotic stresses. To date, no systematic study of this gene family has been conducted in cassava (Manihot esculenta Crantz). Here, eight MeGolS genes are isolated from the cassava genome. Based on phylogenetic background, the MeGolSs are clustered into four groups. Through predicting the cis-elements in their promoters, it was discovered that all MeGolS members act as hormone-, stress-, and tissue-specific related elements to different degrees. MeGolS genes exhibit incongruous expression patterns in various tissues, indicating that different MeGolS proteins might have diverse functions. MeGolS1 and MeGolS3-6 are highly expressed in leaves and midveins. MeGolS3-6 are highly expressed in fibrous roots. Quantitative real-time Polymerase Chain Reaction (qRT-PCR) analysis indicates that several MeGolSs, including MeGolS1, 2, 5, 6, and 7, are induced by abiotic stresses. microRNA prediction analysis indicates that several abiotic stress-related miRNAs target the MeGolS genes, such as mes-miR156, 159, and 169, which also respond to abiotic stresses. The current study is the first systematic research of GolS genes in cassava, and the results of this study provide a basis for further exploration the functional mechanism of GolS genes in cassava.

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