Transcriptional Regulation of the <i>Phenylalanine Ammonia-Lyase</i> (<i>PAL</i>) Gene Family in Mulberry Under Chitosan-Induced Stress.

ABSTRACT: Regulation of the phenylpropanoid pathway is critical for plant development and defense. This research investigates the transcriptional control of six Phenylalanine Ammonia-Lyase (PAL) gene homologs identified in the mulberry genome. A comprehensive in silico pipeline was employed to analyze the promoter architecture of these genes. Using the MEME suite, we identified three statistically significant conserved motifs within the 2000 bp upstream region. Subsequent TF binding prediction with FootprintDB for these motifs implicated the TCP, NAC, AP2/ERF, B3, and BBR-BPC families as potential regulators. A parallel analysis with PlantRegMap highlighted a high density of binding sites for the BBR-BPC and AP2/ERF families in the core promoter regions. A comparative analysis showed a

SUBMITTER: Rakpenthai A 

PROVIDER: S-EPMC12430538 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature