JAMYB — Oryza sativa Indica Group

Summary

BGIOSGA035999, designated JAMYB (synonyms OiJAMYB, OiR2R3-MYB), encodes a protein with a Myb domain and SANT/Myb domain, belonging to the EOBI/EOBII-like family, with DNA-binding and transcription regulatory activity. JAMYB is associated with the regulation of phenylpropanoid and shikimate metabolism, lignin and anthocyanin biosynthesis, cell wall organization, floral organ senescence, anther and pollen development, pigmentation, green leaf volatile production, circadian rhythm, and responses to virus, salinity, and thirst. It localizes to the nucleus and plant-type cell wall. The gene is linked to grain length, grain size, and hull color, as well as phenotypes including seedling salinity tolerance, bacterial blight, blast, and lesion formation. Studies of related genes in other species connect the family to salinity stress, seed germination, jasmonate signaling, and fungal resistance.