HD1 (OS02G0214900) — Oryza sativa Japonica

Summary

OS02G0214900 (HD1, also known as HDAC3) on rice chromosome 2 encodes a histone deacetylase with NAD-independent activity, belonging to the His_deacetylse family. The enzyme is associated with histone deacetylase binding, transcription corepressor activity, and structural chromatin constituents. It localizes to HDAC and PRC2 complexes, the nucleolus, and chloroplast envelope. The gene is linked to diverse biological processes including flower formation, negative regulation of seed maturation, fruit abscission, and responses to abiotic and biotic stresses such as drought, salinity, and rice thrips damage. Trait associations include grain plumpness, culm length, floral organ length, branch angle, leaf elongation rate, and metabolite content. Related genes in other species are linked to flowering transition, seed desiccation, fertility, and systemic acquired resistance, and to abiotic stress tolerance.