SUMO-conjugating enzymes (SCE) and SUMO (Small Ubiquitin-Like Modifiers) genes are important components of SUMOylation. SCE has a crucial role during the SUMOylation process which acts as a catalyst to transfer SUMO to the target protein. Comprehensive studies on SCE and SUMO have been performed in some plants, but studies on these genes remain limited in potato. This study is aimed at exploring the role of StSCE and StSUMO genes in abiotic stress conditions. Nine and seven putative StSCEs and StSUMO genes, respectively, were identified using different methods and databases available for potato. Chromosomal localization showed that SCE and StSUMO genes are unevenly distributed on 7 different chromosomes. Potato genome database was accessed for the expression profile of StSCE and StSUMO genes, and these genes were differentially expressed in different tissues and organs during different phases of plant growth. The expression patterns on different treatments were further evaluated using qRT-PCR for all the StSCE and StSUMO genes. The expression was upregulated in StSCE1/5/6 and 7 under salt and PEG treatment. StSUMO 1/2 and 4 were upregulated under salt stress whereas StSCE9 and StSUMO2 and 4 were observed downregulated under PEG treatment. The results of this study could be useful to explore the role of StSCE genes in potato improvement.

中文翻译：

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非生物胁迫下马铃薯（Solanum tuberosum L.）的SUMO结合酶和基因的基因组分析。

SUMO-缀合酶（SCE）和SUMO（小泛素样修饰剂）基因是SUMOylation的重要组成部分。SCE在SUMOylation过程中起着至关重要的作用，SUMOylation是将SUMO转移到目标蛋白的催化剂。已经在一些植物中对SCE和SUMO进行了全面的研究，但是对这些基因的研究在马铃薯中仍然有限。这项研究旨在探讨StSCE和StSUMO基因在非生物胁迫条件下的作用。使用马铃薯可用的不同方法和数据库分别鉴定了9个和7个推定的StSCE和StSUMO基因。染色体定位显示SCE和StSUMO基因在7个不同的染色体上分布不均。访问马铃薯基因组数据库以获取StSCE和StSUMO基因的表达概况，这些基因在植物生长的不同阶段在不同的组织和器官中差异表达。使用qRT-PCR进一步评估所有StSCE和St SUMO基因在不同处理方式下的表达模式。在盐和PEG处理下，StSCE1 / 5/6和7中的表达上调。StSUMO 1/2和4在盐胁迫下上调，而StSCE9和StSUMO2和4观察到在PEG处理下被下调。这项研究的结果可能有助于探索StSCE基因在马铃薯改良中的作用。