Decoding PHR-Orchestrated Stress Adaptation: A Genome-Wide Integrative Analysis of Transcriptional Regulation Under Abiotic Stress in <i>Eucalyptus grandis</i>.

ABSTRACT: The phosphate starvation response (PHR) transcription factor family play central regulatory roles in nutrient signaling, but its relationship with other abiotic stress remains elusive. In the woody plant Eucalyptus grandis, we characterized 12 EgPHRs, which were phylogenetically divided into three groups, with group I exhibiting conserved structural features (e.g., unique motif composition and exon number). Notably, a protein-protein interaction network analysis revealed that EgPHR had a species-specific protein-protein interaction network: EgPHR6 interacted with SPX proteins of multiple species, while Eucalyptus and poplar PHR uniquely bound to TRARAC-kinesin ATPase, suggesting functional differences between woody and herbaceous plants. A promoter sequence analysis revealed

SUBMITTER: Xu H 

PROVIDER: S-EPMC11988722 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature