DAO — Oryza sativa Indica Group

Summary

BGIOSGA006142 (DAO) on chromosome 2 of Indica rice encodes a protein with an iron/ascorbate oxidoreductase domain and annotated dioxygenase activities, including indole-3-acetaldehyde oxidase, gibberellin 2-oxidase, gibberellin 20-oxidase, and flavanone 3-dioxygenase. The gene is associated with auxin breakdown and cellular auxin homeostasis, gibberellin catabolism and metabolism, the ascorbate-glutathione cycle, the shikimate pathway, flavonoid and coumarin anabolism, and responses to flooding, light stimulus, fungal molecules, and oomycetes. It is linked to photosynthetic rate and chlorophyll content, as well as phenotypes including altered root development, cotyledon size, plant stature, lateral root density, floral development, and adventitious root initiation. The protein localises to the cytoplasm, endoplasmic reticulum, and nucleus. Related genes in other species connect the family to lateral root development, root hair length, and auxin homeostasis.