The sugar transporter protein (STP) plays a crucial role in regulating plant growth and stress tolerance. We performed genome-wide identification and expression analysis of the STP gene family to investigate the STPSs’ potential roles in the growth of wheat seedlings under stress. Here, a total of 81 TaSTP genes containing the Sugar_tr conserved motif were identified within the wheat genome. Bioinformatic studies including phylogenetic tree, chromosome position, and tandem repeat were performed to analyze the identified genes. The 81 TaSTP genes can be classified into five main groups according to their structural and phylogenetic features, with several subgroups, which were located separately on chromosomes A, B, and D. Moreover, six gene clusters were formed with more than three genes each. The results of three comparative syntenic maps of wheat associated with three representative species suggested that STP genes have strong relationships in monocots. qRT-PCR analysis confirmed that most TaSTP genes displayed different expression profiles after seedlings were subjected to six days of different stress (10% PEG6000, 150 mM NaCl, and their combination, respectively), suggesting that these genes may be involved in regulating plant growth and stress tolerance. In conclusion, 81 TaSTP genes were identified and their expressions changed under stress, indicating TaSTP’s potential roles in wheat growth monosaccharide distribution is regulated.

中文翻译：

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小麦（Triticum aestivum。L）中的糖转运蛋白家族：幼苗在胁迫期间的全基因组鉴定，分类和表达谱

糖转运蛋白（STP）在调节植物生长和胁迫耐受性中起着至关重要的作用。我们进行了全基因组鉴定和STP基因家族的表达分析，以研究STPS在胁迫下小麦幼苗生长中的潜在作用。在此，在小麦基因组中鉴定出总共81个包含Sugar_tr保守基序的TaSTP基因。进行了包括系统发育树，染色体位置和串联重复序列在内的生物信息学研究，以分析鉴定出的基因。根据其结构和系统发育特征，将81个TaSTP基因分为五个主要组，其中有几个亚组，分别位于A，B和D染色体上。此外，形成了六个基因簇，每个簇具有三个以上的基因。三个与三个代表性物种相关的小麦比较同步图谱的结果表明，STP基因在单子叶植物中具有很强的关系。qRT-PCR分析证实，多数TaSTP基因在幼苗受到六天不同胁迫后（分别为10％PEG6000、150 mM NaCl及其混合物）显示出不同的表达谱，表明这些基因可能参与调节植物的生长和压力承受能力。总之，鉴定了81个TaSTP基因，并且它们的表达在胁迫下发生了变化，这表明TaSTP在小麦生长单糖分布中的潜在作用受到调节。qRT-PCR分析证实，多数TaSTP基因在幼苗受到六天不同胁迫后（分别为10％PEG6000、150 mM NaCl及其混合物）显示出不同的表达谱，表明这些基因可能参与调节植物的生长和压力承受能力。总之，鉴定了81个TaSTP基因，并且它们的表达在胁迫下发生了变化，这表明TaSTP在小麦生长单糖分布中的潜在作用受到调节。qRT-PCR分析证实，多数TaSTP基因在幼苗受到六天不同胁迫后（分别为10％PEG6000、150 mM NaCl及其混合物）显示出不同的表达谱，表明这些基因可能参与调节植物的生长和压力承受能力。总之，鉴定了81个TaSTP基因，并且它们的表达在胁迫下发生了变化，这表明TaSTP在小麦生长单糖分布中的潜在作用受到调节。