MYB — Zea mays

Summary

ZmMYB (ZM00001EB147010) on maize chromosome 3 encodes a protein with Myb and SANT domains and is associated with DNA binding, transcription cis-regulatory region binding, protein homodimerization activity, and zinc binding. It is associated with ear morphogenesis, pigment accumulation, phloem loading, cell dedifferentiation, negative regulation of abscisic acid biosynthesis, regulation of secondary metabolism, and regulation of anabolism. The gene has been linked to numerous agronomic traits including plant and pericarp color, cob and ear diameter, ear length, seed weight and size, grain size, leaf width and shape, root number, lignin, starch, anthocyanin, flavonoid, cellulose, proline, and protein content, nitrogen content, potassium uptake, nitrate transport, photosynthetic rate, cold tolerance, germination ratio and rate, callus induction, and heterosis. It is also connected to drought, salt, and abiotic stress tolerance, ABA sensitivity, seed lipid biosynthesis, and reproductive development. Studies of related genes in other species link the MYB family to yield, grain iron and zinc content, panicle dry weight, and enhanced salt tolerance.