MYB — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0636370 (HvMYB) encodes a MYB-domain transcription factor with sequence-specific DNA binding and RNA polymerase binding activities, localised to the nucleus. In barley, HvMYB is associated with the regulation of circadian rhythm and gene expression, endosperm development, starch metabolism, proanthocyanidin biosynthesis, pigmentation, secondary growth, autophagy, the MAPK cascade, green leaf volatile biosynthesis, and responses to temperature stress, drought, and fungal disease. The gene is also linked to grain yield, weight, size, length, photosynthetic rate, stomatal resistance, chlorophyll content, and flowering time. Studies of related genes in other species connect the family to circadian clock function, photomorphogenesis, thermotolerance, cold and heat stress responses, hypocotyl elongation, leaf area, biomass, and cell size.