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Genome-Wide Identification and Analysis of OsSPXs Revealed Its Genetic Influence on Cold Tolerance of Dongxiang Wild Rice (DXWR)

文献类型： 外文期刊

作者： Huang, Cheng 1 ; Wang, Jilin 1 ; Wang, Dianwen 1 ; Chang, Jingjing 2 ; Chen, Hongping 1 ; Chen, Dazhou 1 ; Deng, Wei 1 ; Tian, Chunjie 2 ;

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

2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Mollisols Agroecol, Changchun 130102, Peoples R China

关键词： Dongxiang wild rice; Oryza rufipogon Griff; SPX-domain protein; cold tolerance; expression patterns

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2023 年 24 卷 10 期

页码：

收录情况： SCI

摘要： SPX-domain proteins (small proteins with only the SPX domain) have been proven to be involved in phosphate-related signal transduction and regulation pathways. Except for OsSPX1 research showing that it plays a role in the process of rice adaptation to cold stress, the potential functions of other SPX genes in cold stress are unknown. Therefore, in this study, we identified six OsSPXs from the whole genome of DXWR. The phylogeny of OsSPXs has a strong correlation with its motif. Transcriptome data analysis showed that OsSPXs were highly sensitive to cold stress, and real-time PCR verified that the levels of OsSPX1, OsSPX2, OsSPX4, and OsSPX6 in cold-tolerant materials (DXWR) during cold treatment were higher than that of cold-sensitive rice (GZX49). The promoter region of DXWR OsSPXs contains a large number of cis-acting elements related to abiotic stress tolerance and plant hormone response. At the same time, these genes have expression patterns that are highly similar to cold-tolerance genes. This study provides useful information about OsSPXs, which is helpful for the gene-function research of DXWR and genetic improvements during breeding.

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