Characterization of FBA genes in potato ( Solanum tuberosum L.) and expression patterns in response to light spectrum and abiotic stress

• Published in: Frontiers in genetics 2024-04, Vol.15, p.1364944-1364944
• Main Authors: Li, Ting, Hou, Xinyue, Sun, Zhanglun, Ma, Bin, Wu, Xingxing, Feng, Tingting, Ai, Hao, Huang, Xianzhong, Li, Ruining
• Format: Article
• Language: English
• Subjects: abiotic stress; fructose-1, 6-bisphosphate aldolase; gene expression; Genetics; genome-wide identification; light spectrum; Solanum tuberosum
• ISSN: 1664-8021; 1664-8021
• DOI: 10.3389/fgene.2024.1364944

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 ( L.) FBA gene family has not been systematically analyzed. In this study, we identified nine gene members in potato, with six genes localized in the chloroplast and three in the cytoplasm. The analysis of gene structures, protein structures, and phylogenetic relationships indicated that 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 gene family. Promoter analysis showed that most genes contained -regulatory elements associated with light and stress responses. Expression analysis showed that , and 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 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 genes, as well as providing the basis for the genetic improvement of potatoes.