Comprehensive characterization of the PeMADS gene family in Phyllostachys edulis reveals new insights into floral development and evolution
Year: 2026
Type: article
Abstract: MADS-box genes are pivotal regulators of plant growth, development, and stress responses. While previous studies have identified only 42 MADS-box genes (PeMADS) in Phyllostachys edulis (moso bamboo), the full scope of the MADS gene family in bamboo remained largely unexplored. In this study, we used phylogenetic analysis, motif and CDD analysis, integration of 16 RNA-seq datasets, and qPCR of moso bamboo-specific genes to characterize PeMADS genes, identifying a total of 110 PeMADS genes in moso bamboo. These genes were classified into two main types based on their structural features: type 1 genes, which contain only the MADS domain (PF01486), and type 2 genes, which harbor both the MADS and K-box domains (PF01486), suggesting a more complex role in gene regulation. Leveraging a large-scale integration of 16 RNA-seq datasets representing diverse developmental stages and stress treatments, we identified a distinct group of 15 type 2 PeMADS genes that are exclusively expressed in flower florets, highlighting their potential involvement in floral development. Additionally, through the analysis of these RNA-seq data, we uncovered a set of candidate genes that are likely regulated by PeMADS , providing further insights into their downstream regulatory networks. Finally, an evolutionary comparison of the PeMADS gene family across four different bamboo species revealed both conserved and divergent patterns, offering valuable insights into the evolution of MADS-box genes in the bamboo lineage. This study significantly enhances our understanding of the PeMADS gene family and lays the groundwork for future functional genomics studies and breeding applications in bamboo.
Source: Frontiers in Plant Science
Institution: Central South University of Forestry and Technology
Language: English
Subfield: Plant Science
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $3,801
OpenAlex ID: W7155064489