Genome-Wide Analysis of Trehalose-6-Phosphate Phosphatases (TPP) Gene Family in Potato (<i>Solanum tuberosum</i>) Reveals Functional Divergence Under Stress.

ABSTRACT: Trehalose-6-phosphate phosphatase (TPP) modulates the Trehalose-6-phosphate-trehalose balance, a key regulatory node in plant carbon sensing and stress resilience. However, its functional roles in vegetative crops such as potato (Solanum tuberosum, St) remains poorly understood. Here, we conducted a genome-wide identification of the StTPP gene family and identified nine distinct loci distributed across five chromosomes. Phylogenetic analysis categorized these loci into three clades, supported by conserved HAD-box motifs and distinct exon-intron structures. Family expansion was driven by segmental duplication under purifying selection. In silico promoter analysis revealed cis-elements responsive to hormones, light, and stress, while network modeling identified 64 transc

SUBMITTER: Huang S 

PROVIDER: S-EPMC12608325 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature