RHD2 — Beta vulgaris subsp. vulgaris

Summary

BVRB_5G099740 (BvRHD2) on sugar beet chromosome 5 encodes a protein with NADPH oxidase, FAD-binding, ferric reductase, and EF-hand calcium-binding domains, and is annotated with NAD(P)H oxidase H2O2-forming activity, calcium ion binding, and multiple kinase activities. The gene is associated with immune response-regulating signaling, defense response by callose deposition, respiratory burst, H2O2 biosynthesis, root epidermal cell differentiation, and carbohydrate homeostasis. It is linked to numerous agronomic traits including grain yield, seed yield, biomass yield, bacterial blight disease resistance, aphid response, water use efficiency, stomatal resistance, root hair length and elongation, phototropism, aluminum and osmotic stress responses, and anthocyanin content. Related genes in other species are associated with salt, cold, heat, and oxidative stress tolerance, as well as lateral root development and photosynthetic induction.