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Genome-Wide Identification of DUF668 Gene Family and Expression Analysis under Drought and Salt Stresses in Sweet Potato [Ipomoea batatas (L.) Lam]

文献类型： 外文期刊

作者： Liu, Enliang 1 ; Li, Zhiqiang 1 ; Luo, Zhengqian 2 ; Xu, Linli 2 ; Jin, Ping 2 ; Ji, Shun 2 ; Zhou, Guohui 3 ; Wang, Zhenyang 4 ; Zhou, Zhilin 5 ; Zhang, Hua 6 ;

作者机构： 1.Xinjiang Acad Agr Sci, Grain Crops Inst, Urumqi 830000, Peoples R China

2.Xinjiang Acad Agr Sci, Comprehens Proving Ground, Urumqi 830052, Peoples R China

3.Adsen Biotechnol Co Ltd, Urumqi 830000, Peoples R China

4.Tarim Univ, Coll Agr, Tarim Rd, Alaer 843301, Peoples R China

5.Xuzhou Inst Agr Sci Xuhuai Dist, Xuzhou 221131, Peoples R China

6.Xinjiang Agr Univ, Sch Life Sci, Urumqi 830022, Peoples R China

关键词： sweet potato; DUF668 gene family; bioinformatics; qRT-PCR

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 1 期

页码：

收录情况： SCI

摘要： The domain of unknown function 668 (DUF668) is a gene family that plays a vital role in responses to adversity coercion stresses in plant. However, the function of the DUF668 gene family is not fully understood in sweet potato. In this study, bioinformatics methods were used to analyze the number, physicochemical properties, evolution, structure, and promoter cis-acting elements of the IbDUF668 family genes, and RNA-seq and qRT-PCR were performed to detect gene expression and their regulation under hormonal and abiotic stress. A total of 14 IbDUF668 proteins were identified in sweet potato, distributed on nine chromosomes. By phylogenetic analysis, IbDUF668 proteins can be divided into two subfamilies. Transcriptome expression profiling revealed that many genes from DUF668 in sweet potato showed specificity and differential expression under cold, heat, drought, salt and hormones (ABA, GA3 and IAA). Four genes (IbDUF668-6, 7, 11 and 13) of sweet potato were significantly upregulated by qRT-PCR under ABA, drought and NaCl stress. Results suggest that the DUF668 gene family is involved in drought and salt tolerance in sweet potato, and it will further provide the basic information of DUF668 gene mechanisms in plants.

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