MYB — Oryza sativa Indica Group

Summary

BGIOSGA004852 (MYB, also known as DIV2, MID1, or OiMID1) on chromosome 1 of Indica rice encodes a protein with Myb and SANT domains, and is associated with DNA binding, transcription cis-regulatory region binding, protein homodimerization activity, and zinc binding. In this species, MID1 is associated with anther development, yield, and transcriptional regulation. The gene is linked to diverse biological processes including negative regulation of abscisic acid biosynthesis, phospholipid breakdown, determination of dorsoventral asymmetry, cellular auxin homeostasis, pigmentation, meristem development, regeneration, calcium signaling, regulation of leaf senescence, green leaf volatile biosynthesis, lateral root development, and response to sucrose. It is also associated with traits such as hull color, rolled leaf, culm diameter, shoot dry weight, leaf chlorophyll content, grain length, grain number, grain size, grain yield, cold tolerance, photosynthetic rate, germination rate, heterosis, and callus induction. The protein localizes to mitochondria, cytosol, and cytoplasm. Studies of related genes in other species link the MYB family to panicle dry weight, fungal disease response, and grain mineral content.