AMY1 — Cucumis melo

Summary

MELO3C017002.2, designated CmAMY1 on melon chromosome 8, encodes an alpha-amylase family protein with alpha-amylase activity, calcium ion binding, and also SUMO transferase activity and SUMO binding. This gene is associated with starch and sucrose metabolism and breakdown, fruit development and ripening, response to gibberellin and abscisic acid, and embryo development ending in seed dormancy. The protein localises to the apoplast, chloroplast stroma, cytosol, and nucleus. CmAMY1 is linked to sugar content, respiration rate, abscisic acid sensitivity, and flowering time. It has also been connected to starch degradation, stomatal opening, osmotic stress tolerance, heat stress response, defense gene expression, and viral resistance. Studies of related genes in other species link the family to transitory starch breakdown and osmotic stress response, and to immune response.