GL1A — Oryza sativa Indica Group

Summary

BGIOSGA029363 (GL1A, OiGL1A) on Indica rice chromosome 9 encodes a plant R2R3-MYB transcription factor with DNA-binding, protein dimerization and small GTPase-binding activities. The gene is associated with regulation of flavonoid, anthocyanin, proanthocyanidin, flavonol, lignin and phenylpropanoid biosynthesis, as well as trichome differentiation and spacing, seed coat development, pigmentation, vascular tissue patterning and the shikimate pathway. It is linked to hull color, grain length and size, leaf trichome density, cold tolerance, disease tolerance, UV-B light sensitivity, brassinosteroid and jasmonic acid content, nitrate uptake, flowering time, and shoot apical and root meristem development. The protein localizes to the nucleus, cytoplasm and root hairs. Studies of related genes in other species connect the family to salt stress response, ABA-induced inhibition of seed germination and UV protection.