MYB1 — Brachypodium distachyon

Summary

BRADI_2G55040V3 (MYB1, also known as BdSRM1) encodes a protein with a MYB transcription factor domain and homeodomain-like superfamily domain that localises to the nucleus and cytosol and is associated with sequence-specific DNA binding, RNA polymerase II cis-regulatory region binding, chromatin binding, and DNA-binding transcription factor activity. In Brachypodium distachyon, this gene is associated with the regulation of secondary metabolism, including phenylpropanoid and lignin anabolism, cell wall thickening, green leaf volatile biosynthesis, anther and tapetum development, pollen development, stomatal movement, programmed cell death, circadian rhythm, and responses to auxin, salinity, and thirst. It is also linked to anthesis time and salt stress tolerance. Related genes in other species are linked to tapetum development, leaf shape, and seed germination under salt stress, and sequence similarity to cereal genes links the family to traits including grain size, seed weight, plant height, lignin and flavonoid content, and drought and heat tolerance.