HD1 — Oryza sativa Japonica

Summary

OsHD1 (OS04G0409600) on rice chromosome 4 encodes a protein with histone deacetylase activity, NAD-independent, and is also annotated for histone binding, chromatin binding, transcription corepressor activity, and structural constituent of chromatin. It is associated with flower formation, regulation of seed maturation, fruit abscission, and response to biotic stimuli. The gene has been linked to grain plumpness, culm length, leaf elongation rate, branch angle, plant female sterility, and metabolite content traits including brassinosteroid, gibberellin, and total soluble sugar content. Associations with drought, salinity, abiotic stress tolerance, ABA, jasmonic acid, BR signaling, and RSV resistance have been reported. Related genes in other species link the family to female gametophyte development, post-germination growth, systemic acquired resistance, and abiotic stress tolerance.