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Identification and Analysis of the Expression of the PIP5K Gene Family in Tomatoes

文献类型： 外文期刊

作者： Wang, Zepeng 1 ; Wang, Zhongyu 1 ; Li, Xianguo 1 ; Chen, Zhaolong 1 ; Liu, Yuxiang 1 ; Zhang, Fulin 1 ; Dai, Qi 1 ; Yu, Qinghui 1 ; Li, Ning 1 ;

作者机构： 1.Inst Hort Crops, Xinjiang Acad Agr Sci, Key Lab Genome Res & Genet Improvement Xinjiang Ch, Urumqi 830091, Peoples R China

2.State Key Lab Genet Improvement & Germplasm Innova, Urumqi 830091, Peoples R China

3.Xinjiang Agr Univ, Coll Hort, Urumqi 830052, Peoples R China

关键词： tomato; PIP5K gene family; fruit development; salt stress; expression analysis

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： 2024 年 25 卷 1 期

页码：

收录情况： SCI

摘要： To explore the function of phosphatidylinositol 4-phosphate 5-kinase (PIP5K) in tomatoes, members of the tomato PIP5K family were identified and characterized using bioinformatic methods, and their expression patterns were also analyzed under salt stress and in different tissues. Twenty-one PIP5K members-namely, SlPIP5K1-SlPIP5K21-were identified from ten chromosomes, and these were divided into three groups according to a phylogenetic analysis. Further bioinformatic analysis showed four pairs of collinear relationships and fragment replication events among the SlPIP5K family members. To understand the possible roles of the SlPIP5Ks, a cis-acting element analysis was conducted, which indicated that tomato PIP5Ks could be associated with plant growth, hormones, and stress responses. We further validated the results of the in silico analysis by integrating RNA-seq and qRT-PCR techniques for salt- and hormone-treated tomato plants. Our results showed that SlPIP5K genes exhibited tissue- and treatment-specific patterns, and some of the SlPIP5Ks exhibited significantly altered expressions after our treatments, suggesting that they might be involved in these stresses. We selected one of the SlPIP5Ks that responded to our treatments, SlPIP5K2, to further understand its subcellular localization. Our results showed that SlPIP5K2 was located on the membrane. This study lays a foundation for the analysis of the biological functions of the tomato SlPIP5K genes and can also provide a theoretical basis for the selection and breeding of new tomato varieties and germplasm innovation, especially under salt stress.

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