YUC — Brachypodium distachyon

Summary

BdYUC (BRADI_2G10290V3) on chromosome 2 of Brachypodium distachyon encodes a protein with indole-3-pyruvate monooxygenase, indolepyruvate decarboxylase, and protein-disulfide reductase (NAD(P)) activities, and belongs to the auxin biosynthesis/cation transport and FAD/NAD-binding superfamilies. The gene is associated with IAA biosynthesis, auxin anabolism, and regulation of auxin biosynthesis, as well as drought recovery, regeneration, and responses to metal, herbicide, cytokinin, and oxidative stress. It is linked to regulation of morphogenesis, leaf, root, flower, inflorescence, cotyledon, and phyllome development, floral meristem determinacy, and embryogenesis. The product localizes to the ER, Golgi, mitochondria, cytosol, and extracellular space. Associations with IAA content, seed size, shoot branching, lateral root formation, senescence, and heavy metal stress tolerance have been noted. Studies of related genes in other species connect the family to additional traits including floret number, inflorescence size, aluminum tolerance, and photoperiod sensitivity.