H4 — Beta vulgaris subsp. vulgaris

Summary

BvH4 (BVRB_5G125920) on sugar beet chromosome Bvchr5_un.sca018 encodes a protein with a histone-fold domain and CENP-T/H4_C region, annotated with multiple molecular functions including histone acetylase, deacetylase, methylase, and binding activities, as well as calmodulin binding and calcium ion binding. The gene is associated with nucleosome assembly, epigenetic regulation of gene expression, photoperiodism and flowering time, vernalization response, seed maturation, and responses to UV-B and hydrogen peroxide. It is linked to traits including flowering time, bacterial blight disease resistance, shoot branching, leaf and root morphology, chloroplast development, senescence, stress responses (high and low temperature, salt), and brassinosteroid and abscisic acid sensitivity. Related genes in other species are linked to circadian rhythm, pre-mRNA splicing, disease resistance, and salt stress response.