Evolutionary and functional analysis of the DIR gene family in Moso bamboo: insights into rapid shoot growth and stress responses.

ABSTRACT: Dirigent (DIR) proteins are key regulators of lignin and lignan biosynthesis and play critical roles in plant hormone responses, abiotic stress tolerance, and growth and development. This study identified and characterized 47 PeDIR genes in Moso bamboo, classifying them into three groups. Phylogenetic and comparative analyses revealed strong evolutionary conservation, with the Moso bamboo PeDIR genes being most closely related to those in rice and maize. DIR proteins within each subfamily exhibited high conservation in motif composition, domain structure, and 3D configuration. Subcellular localization and protein interaction studies further elucidated PeDIR gene functions. Specifically, PeDIR02 primarily localized to the cell membrane and was shown to be unable to form

SUBMITTER: Xuan X 

PROVIDER: S-EPMC11893575 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature