A transcription factor, PbWRKY24, contributes to russet skin formation in pear fruits by modulating lignin accumulation.

ABSTRACT: Skin color is one of the major traits of fruit appearance quality in pear (Pyrus) that affects the fruit commodity value. Russet skin protects pear fruits from environmental stresses and its formation process is closely linked to lignin accumulation. However, the molecular regulatory networks underlying russet skin formation in pear fruits involve complex secondary metabolic pathways and remain elusive. Here, we explored the regulatory mechanisms underlying lignin accumulation in pear skin based on transcriptome sequencing, co-expression network analysis, and gene expression profiling. We identified a WRKY transcription factor gene, PbWRKY24, that regulates russet skin formation in pear fruits. The relative expression of PbWRKY24 in russet pear skin was significantly c

SUBMITTER: Wang J 

PROVIDER: S-EPMC11822408 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature