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Genome-Wide Identification of GATA Family Genes in Potato and Characterization of StGATA12 in Response to Salinity and Osmotic Stress

文献类型： 外文期刊

作者： Zhu, Xi 1 ; Duan, Huimin 1 ; Zhang, Ning 4 ; Majeed, Yasir 4 ; Jin, Hui 1 ; Li, Wei 1 ; Chen, Zhuo 1 ; Chen, Shu 1 ; Tang, Jinghua 1 ; Zhang, Yu 1 ; Si, Huaijun 4 ;

作者机构： 1.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Fruit Biol, Minist Agr & Rural Affairs, Zhanjiang 524091, Peoples R China

2.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Hainan Prov Postharvest Physiol & Technol, Zhanjiang 524091, Peoples R China

3.Chinese Acad Trop Agr Sci, Sanya Res Inst, Natl Key Lab Trop Crop Breeding, Sanya 572025, Peoples R China

4.Gansu Agr Univ, State Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China

5.Gansu Agr Univ, Coll Life Sci & Technol, Lanzhou 730070, Peoples R China

6.Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China

关键词： GATA gene family; potato; salinity stress; osmotic stress

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 22 期

页码：

收录情况： SCI

摘要： GATA factors are evolutionarily conserved transcription regulators that are implicated in the regulation of physiological changes under abiotic stress. Unfortunately, there are few studies investigating the potential role of GATA genes in potato plants responding to salt and osmotic stresses. The physicochemical properties, chromosomal distribution, gene duplication, evolutionary relationships and classification, conserved motifs, gene structure, interspecific collinearity relationship, and cis-regulatory elements were analyzed. Potato plants were treated with NaCl and PEG to induce salinity and osmotic stress responses. qRT-PCR was carried out to characterize the expression pattern of StGATA family genes in potato plants subjected to salinity and osmotic stress. StGATA12 loss-of-function and gain-of-function plants were established. Morphological phenotypes and growth were indicated. Photosynthetic gas exchange was suggested by the net photosynthetic rate, transpiration rate, and stomatal conductance. Physiological indicators and the corresponding genes were indicated by enzyme activity and mRNA expression of genes encoding CAT, SOD, POD, and P5CS, and contents of H2O2, MDA, and proline. The expression patterns of StGATA family genes were altered in response to salinity and osmotic stress. StGATA12 protein is located in the nucleus. StGATA12 is involved in the regulation of potato plant growth in response to salinity and osmotic stress. Overexpression of StGATA12 promoted photosynthesis, transpiration, and stomatal conductance under salinity and osmotic stress. StGATA12 overexpression induced biochemical responses of potato plants to salinity and osmotic stress by regulating the levels of H2O2, MDA, and proline and the activity of CAT, SOD, and POD. StGATA12 overexpression induced the up-regulation of StCAT, StSOD, StPOD, and StP5CS against salinity and osmotic stress. StGATA12 could reinforce the ability of potato plants to resist salinity and osmosis-induced damages, which may provide an effective strategy to engineer potato plants for better adaptability to adverse salinity and osmotic conditions.

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