The ApWRKY26/ApERF4-ApMYB2 module regulates anthocyanin accumulation for the seasonal leaf color transition in <i>Acer palmatum</i>.

ABSTRACT: Acer palmatum 'Duocai' is an excellent ornamental cultivar maintained through asexual propagation. In spring and autumn, it exhibits red leaves, and in summer, it displays green leaves. To investigate the genetic and epigenetic regulation underlying these seasonal pigmentation shifts, we implemented a comprehensive multi-omics approach. Metabolomic profiling identified cyanidin-3-O-glucoside as the predominant biochemical factor governing seasonal leaf color transitions. RNA-seq, ATAC-seq, Hi-C, and WGBS were utilized to examine transcriptomic and chromatin remodeling dynamics. Multi-omics regulatory network analysis identified ApMYB2 as a key transcription factor (TF) affecting anthocyanin accumulation by regulating ApF3'H2 expression. Functional analyses demonstrated that t

SUBMITTER: Chen Z 

PROVIDER: S-EPMC12860562 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature