H4 — Beta vulgaris subsp. vulgaris

Summary

BvH4 (BVRB_1G011610) on sugar beet chromosome 1 encodes a histone H4 protein with a histone-fold domain and a CENP-T/H4_C domain, annotated with structural constituent of chromatin, histone binding, DNA binding, and multiple chromatin-modifying activities including histone acetylase, deacetylase, and methylase functions. The gene is associated with nucleosome assembly, epigenetic regulation of gene expression, photoperiodism and flowering, regulation of the vegetative-to-reproductive phase transition, seed maturation, and responses to UV-B and hydrogen peroxide. It is linked to traits including flowering time, bacterial blight disease resistance, salt tolerance, leaf and root morphology, chloroplast development, and responses to high and low temperature stress. Studies of related genes in other species connect the family to pre-mRNA splicing, circadian clock regulation, and disease resistance.