HD1 — Sorghum bicolor

Summary

SbHD1 (SORBI_3005G079400) on sorghum chromosome 5 encodes a protein with histone deacetylase activity, NAD-independent, and is a member of the His_deacetylse family. It is also annotated with histone demethylase, methyltransferase, transcription corepressor, and chromatin-binding activities. In sorghum, SbHD1 is associated with abiotic stress tolerance. The gene is linked to negative regulation of seed maturation, fruit abscission, regulation of multicellular organismal development, and cellular response to external biotic stimulus. It localizes to the HDAC complex, PRC2 complex, condensed chromosome, nucleolus, and chloroplast envelope. Associations include traits such as drought and salinity tolerance, floral organ length, fruit ripening, branch angle, leaf elongation rate, total soluble sugar content, and vegetative to reproductive phase transition. Studies of related genes in other species link the family to salt tolerance, brassinosteroid signaling, root development, and flower development.