MYB — Triticum turgidum subsp. durum

Summary

TRITD3BV1G210920 (TtMYB) encodes a protein with a MYB domain, SANT domain, and homeodomain-like superfamily, and has DNA-binding transcription factor activity, DNA binding, zinc binding, and protein homodimerization activity. This durum wheat gene on chromosome 3B is associated with negative regulation of abscisic acid biosynthesis, cellular auxin homeostasis, anthocyanin and flavonoid anabolism, and responses to salt, sucrose, gibberellin, salicylate, and abiotic stimulus. It is linked to grain weight, protein content, coleoptile length, photosynthetic rate, manganese concentration, drought tolerance, and salt tolerance. The gene is also associated with leaf senescence, lateral root development, post-embryonic plant organ morphogenesis, and determination of dorsoventral asymmetry. Related genes in other species link the family to anther development, yield, enhanced salt tolerance with better growth and increased ABA content, and numerous grain and vegetative traits including grain iron and zinc content, seed shattering, and panicle dry weight.