MYB — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.3HG0242340, designated HvMYB on barley chromosome 3H, encodes a protein with sequence-specific DNA binding, RNA polymerase binding, and transcriptional co-regulator activities. The protein localises to the nucleus and is associated with circadian rhythm regulation, including upregulation of the circadian clock, entrainment, and circadian regulation of gene expression. HvMYB is associated with proanthocyanidin anabolism, starch metabolism, pigmentation, regulation of endosperm development, secondary growth, and response to cadmium. It is also linked to fungal disease response, grain weight, grain length, grain size, grain yield, flowering time trait, photosynthetic rate, chlorophyll content, stomatal resistance, and drought tolerance. Studies of related genes in other species link the family to circadian clock period, photoperiodic flowering, hypocotyl elongation, thermotolerance, and cold stress response.