H4 — Brachypodium distachyon

Summary

BdH4 (BRADI_2G23004V3) on chromosome 2 of Brachypodium distachyon encodes a histone H4 protein, a structural constituent of chromatin that also possesses histone acetylase, deacetylase, methylase, and DNA-binding activities. The gene is associated with nucleosome assembly, chromatin modeling, telomeric silencing, and the regulation of phase transitions, including the upregulation of vernalization response, photoperiodism, and flowering time. It is linked to seed maturation, endosperm development, somatic embryogenesis, secondary shoot formation, and regeneration. Associations with agronomic traits include bacterial blight disease resistance, stem senescence, shoot axis branching, vegetative growth time, seed growth and development trait, root development trait, chloroplast development trait, and responses to UV-B, high temperature stress, low temperature stress, and brassinosteroid sensitivity, abscisic acid sensitivity, and jasmonic acid content. The protein localizes to the nucleolus, thylakoid, chloroplast envelope, plasmodesma, and plant-type vacuole, as well as to TIP60 histone acetylase complex, Sin3-type complex, and SWR-C.