MYB — Sorghum bicolor

Summary

SORBI_3004G281800, designated SbMYB, encodes a protein with SANT/Myb and homeodomain-like domains, localised to the nucleus and possessing DNA-binding, RNA polymerase-binding and transcriptional co-regulator activities. In sorghum, SbMYB is associated with circadian regulation of gene expression, photoperiodic flowering, pigmentation, phenylpropanoid and glutathione metabolism, gluconeogenesis, fruit development, green leaf volatile biosynthesis, and regulation of transport. It has been linked to grain colour, grain yield, plant height, chlorophyll content, photosynthetic rate, photochemical quenching, flowering time, drought tolerance, salt response, proline content, and temperature stress response. Studies of related genes in other species connect the family to circadian rhythms, photomorphogenesis, hypocotyl elongation, thermotolerance, cold and heat stress responses, biomass, leaf area, cell size, and anthocyanin biosynthesis.