Integrated Transcriptome and Metabolome Analyses Reveal the Roles of MADS-Box Genes in Regulating Flower Development and Metabolite Accumulation in <i>Osmanthus fragran</i>.

ABSTRACT: The MADS-box transcription factors play essential roles in various processes of plant growth and development. Here, we identified 107 MADS-box genes in Osmanthus fragrans Lour. genome (OfMADS), encoding proteins ranging from 61 to 608 amino acids. Phylogenetic analysis classified these genes into five subfamilies: MIKC*, MIKCC, Mα, Mβ, and Mγ, with conserved motif architectures within subfamilies. Tandem and whole-genome duplications were identified as key drivers of OfMADS expansion. Cis-regulatory element analysis revealed enrichment for hormone response and developmental regulatory motifs, implicating roles in growth and flowering processes. Transcriptome dynamics across six floral developmental stages (bolting to petal shed

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC12564812 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature