AMY1 — Solanum tuberosum

Summary

PGSC0003DMG400009891, designated AMY1 on potato chromosome 4, encodes an alpha-amylase (EC 3.2.1.1) that also binds calcium, SUMO, kinase and other proteins. The gene is associated with starch granule initiation, pre-harvest sprouting, lipid digestion, maltose and fructosamine anabolism, and glucose homeostasis. It localises to the apoplast, chloroplast stroma, cytosol and nucleus. AMY1 is linked to numerous agronomic traits including starch, amylose, amylopectin, sugar, sucrose, reducing sugar, protein, nitrogen, phosphate, magnesium, flavonoid, anthocyanin and chlorophyll content, as well as grain yield, root yield, fruit weight, plant height, root length, seedling vigor, germination rate, dry matter digestibility, starch digestibility, starch mobilization, starch yield, respiration rate and shoot fresh weight. Phenotypic associations include stress response, starch degradation, stomatal opening, osmotic stress tolerance and heat stress response.