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Genome-Wide Identification of DUF26 Domain-Containing Genes in Dongxiang Wild Rice and Analysis of Their Expression Responses under Submergence

文献类型： 外文期刊

作者： Huang, Cheng 1 ; Wang, Dianwen 1 ; Chen, Hongping 1 ; Deng, Wei 1 ; Chen, Dazhou 1 ; Chen, Ping 1 ; Wang, Jilin 1 ;

作者机构： 1.Jiangxi Acad Agr Sci, Rice Natl Engn Res Ctr Nanchang, Rice Res Inst, Nanchang 330200, Jiangxi, Peoples R China

关键词： Dongxiang wild rice (Oryza rufipogon Griff; ); DUF26 domain; expression mode; submergence tolerance

期刊名称：CURRENT ISSUES IN MOLECULAR BIOLOGY （ 影响因子：2.976； 五年影响因子：3.139 ）

ISSN： 1467-3037

年卷期： 2022 年 44 卷 8 期

页码：

收录情况： SCI

摘要： The DUF26 domain-containing protein is an extracellular structural protein, which plays an important role in signal transduction. Dongxiang wild rice (Oryza rufipogon Griff.) is the northern-most common wild rice in China. Using domain analysis, 85 DUF26 domain-containing genes were identified in Dongxiang wild rice (DXWR) and further divided into four categories. The DUF26 domain-containing genes were unevenly distributed on chromosomes, and there were 18 pairs of tandem repeats. Gene sequence analysis showed that there were significant differences in the gene structure and motif distribution of the DUF26 domain in different categories. Motifs 3, 8, 9, 13, 14, 16, and 18 were highly conserved in all categories. It was also found that there were eight plasmodesmata localization proteins (PDLPs) with a unique motif 19. Collinearity analysis showed that DXWR had a large number of orthologous genes with wheat, maize, sorghum and zizania, of which 17 DUF26 domain-containing genes were conserved in five gramineous crops. Under the stress of anaerobic germination and seedling submergence treatment, 33 DUF26 domain-containing genes were differentially expressed in varying degrees. Further correlation analysis with the expression of known submergence tolerance genes showed that these DUF26 domain-containing genes may jointly regulate the submergence tolerance process with these known submergence tolerance genes in DXWR.

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