MYB — triticum aestivum

Summary

TRAESCS6A02G258600, designated TaMYB on bread wheat chromosome 6A, encodes a MYB transcription factor with DNA-binding and transcriptional co-regulator activities. The gene is associated with diverse biological processes including circadian regulation of gene expression, photoperiodism, photoprotection, pre-harvest sprouting, and antifungal innate immune response. It is linked to brassinosteroid and cuticle anabolism, fructan anabolism, and metabolism of glutamate, glucose, glutathione, sulfur, and phosphoglycerides. TaMYB is associated with numerous agronomic traits including grain yield, grain iron and zinc content, test weight, heading time, harvest index, stand establishment, drought sensitivity, temperature stress response, wheat stripe rust disease response, and grain color. The protein localises to the nucleus and is connected to pathways including brassinosteroid biosynthesis, starch synthase, and spermine biosynthesis. Studies of related genes in other species link the family to circadian rhythms, photomorphogenesis, and heat stress response.