MYB — Zea mays

Summary

ZmMYB (ZM00001EB379300) on maize chromosome 9 encodes a DNA-binding transcription factor with sequence-specific DNA binding, transcription cis-regulatory region binding, RNA polymerase binding, and transcriptional co-regulator activities, and contains Myb and SANT domains. The gene is associated with ear morphogenesis, pigment accumulation, phloem loading, cell dedifferentiation, and regulation of secondary metabolism, as well as carbohydrate, arabinose, fructose, pyruvate, and phosphoglyceride metabolism. It has been linked to numerous agronomic traits including plant and pericarp color, cob and ear diameter, ear length, leaf width and shape, seed weight and size, grain size, starch, protein, lignin, cellulose, anthocyanin, flavonoid, and proline content, nitrogen content, potassium uptake, nitrate transport, photosynthetic rate, cold tolerance, germination ratio and rate, callus induction, heterosis, and root number. The gene is also associated with circadian rhythm, flowering time, photomorphogenesis, biomass, and stress responses including heat, cold, salt, and osmotic stress.