RHD2 — Cucumis melo

Summary

MELO3C029753.2 (CmRHD2) on melon chromosome 3 encodes a protein with NADPH oxidase, calcium-binding EF-hand domains, and protein kinase activity. The gene is associated with superoxide-generating NAD(P)H oxidase activity and hydrogen peroxide biosynthesis, and is linked to immune response-regulating signaling, defense response by callose deposition, and the respiratory burst involved in defense. Associations include root hair elongation and development, lateral root induction, auxin distribution, cell wall strength, and phosphorus acquisition. The gene has been connected to grain yield, seed yield, biomass yield, bacterial blight disease resistance, aphid response, water use efficiency, transpiration rate, leaf rolling, lignin content, brassinosteroid sensitivity, ethylene sensitivity, osmotic response, and magnesium sensitivity. Studies of related genes in other species link the family to salt, heat, cold, and oxidative stress tolerance, as well as photosynthetic induction and late blight resistance.