Fructose-1, 6-bisphosphate aldolase (FBA) plays vital roles in plant growth, development, and response to abiotic stress. However, genome-wide identification and structural characterization of the potato (Solanum tuberosum L.) FBA gene family has not been systematically analyzed. In this study, we identified nine StFBA gene members in potato, with six StFBA genes localized in the chloroplast and three in the cytoplasm. The analysis of gene structures, protein structures, and phylogenetic relationships indicated that StFBA genes were divided into Class I and II, which exhibited significant differences in structure and function. Synteny analysis revealed that segmental duplication events promoted the expansion of the StFBA gene family. Promoter analysis showed that most StFBA genes contained cis-regulatory elements associated with light and stress responses. Expression analysis showed that StFBA3, StFBA8, and StFBA9 showing significantly higher expression levels in leaf, stolon, and tuber under blue light, indicating that these genes may improve photosynthesis and play an important function in regulating the induction and expansion of microtubers. Expression levels of the StFBA genes were influenced by drought and salt stress, indicating that they played important roles in abiotic stress. This work offers a theoretical foundation for in-depth understanding of the evolution and function of StFBA genes, as well as providing the basis for the genetic improvement of potatoes.

中文翻译：

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马铃薯（Solanum tuberosum L.）FBA 基因的特征以及响应光谱和非生物胁迫的表达模式

1, 6-二磷酸果糖醛缩酶 (FBA) 在植物生长、发育和对非生物胁迫的响应中发挥着至关重要的作用。然而，马铃薯的全基因组鉴定和结构表征（马铃薯L.) FBA基因家族尚未得到系统分析。在这项研究中，我们确定了九个亚马逊FBA马铃薯的基因成员有六个亚马逊FBA基因位于叶绿体中，三个位于细胞质中。基因结构、蛋白质结构和系统发育关系的分析表明：亚马逊FBA基因分为I类和II类，它们在结构和功能上表现出显着差异。同线性分析表明，片段重复事件促进了亚马逊FBA基因家族。启动子分析表明，大多数亚马逊FBA包含的基因顺式-与光和应激反应相关的调节元件。表达分析表明StFBA3,StFBA8,和StFBA9在蓝光下，叶片、匍匐茎和块茎中的表达量显着升高，表明这些基因可能改善光合作用，并在调节微型块茎的诱导和膨大中发挥重要作用。的表达水平亚马逊FBA基因受到干旱和盐胁迫的影响，表明它们在非生物胁迫中发挥重要作用。该工作为深入理解细胞的演化和功能提供了理论基础。亚马逊FBA基因，并为马铃薯的遗传改良提供基础。