HDA9 — Arabidopsis thaliana

Summary

AT3G44680, also known as HDA9, encodes a histone deacetylase with NAD-independent activity, and is annotated with histone deacetylase binding, histone demethylase activity, AT binding, transcription regulator activity, structural constituent of chromatin, transcription corepressor activity, methyltransferase activity, transcriptional co-regulator, cis-regulatory region sequence-specific DNA binding, histone binding, chromatin binding, and protein heterodimerization activity. In Arabidopsis thaliana, HDA9 is associated with thermomorphogenesis, negative regulation of seed maturation, floral organ abscission, and fruit abscission. It localizes to the PRC2 complex, condensed chromosome, and HDAC complex. The gene is linked to numerous traits including floral organ length, flower abscission zone morphology, plant female sterility, total soluble sugar content, fruit quality, branch angle, leaf margin morphology, metabolite content, brassinosteroid content, silique morphology, whole plant size, gibberellin biosynthesis, petal morphology, fruit ripening, shoot growth angle, lignin biosynthesis, and temperature stress response. Studies of related genes in other species connect the family to disease tolerance, starch concentration, and soluble solid content.