【摘要】 盐胁迫通过渗透胁迫和离子毒害影响植物的生理代谢，而SOS(Salt Overly Sensitive)信号通路在植物抵抗盐胁迫中起关键作用.通过生物信息学手段，鉴定马铃薯SOS1、SOS2和SOS3蛋白的序列特征，并分析其在不同物种间的保守性和特异性.利用转录组数据，构建盐胁迫下马铃薯SOS1/2/3基因的共表达转录因子网络，揭示根和叶组织中不同的调控机制.结果表明，SOS1/2/3基因与多个耐盐候选转录因子(如SR1、NF-YA1和TCP20等)存在共表达关系，表明马铃薯耐盐性依赖于多层次的调控网络.更多还原

【Abstract】 Salt stress impacts plant physiological metabolism through osmotic stress and ion toxicity, and the SOS(Salt Overly Sensitive) signaling pathway plays a critical role in plant resistance to salt stress.In this study, we identified the sequence characteristics of the SOS1,SOS2,and SOS3 proteins in potato(Solanum tuberosum L.) using bioinformatics methods and analyzed their conservation and specificity across different species.Through transcriptomic data analysis, we constructed a co-expression transcription factor network of the SOS1/2/3 genes under salt stress, revealing distinct regulatory mechanisms in root and leaf tissues.The results indicate that the SOS1/2/3 gene is co expressed with multiple salt tolerant candidate transcription factors(such as SR1,NF-YA1,TCP20,etc.),suggesting that potato salt tolerance depends on a multi-level regulatory network.更多还原