BAM1 — Solanum tuberosum

Summary

StBAM1 (PGSC0003DMG402020509) on potato chromosome 8 encodes a beta-amylase (EC 3.2.1.2) with a Glyco_hydro_14 domain, and is also annotated with DNA binding transcription factor activity and identical protein binding. The gene is associated with maltose anabolism, sucrose breakdown, polysaccharide breakdown, starch anabolism, carbohydrate metabolism, ABA signaling, response to cold, response to herbivore, and regulation of shoot development. It localizes to the chloroplast stroma, cytosol, nucleus, ER, and secretory vesicle. StBAM1 is linked to traits including reducing sugar content, sucrose content, photosynthetic rate, and respiration rate, and to phenotypes such as leaf starch degradation, plant growth, heat stress tolerance, disease resistance, male fertility, and root and vascular development. Studies of related genes in other species connect the family to starch metabolism, beta-amylase activity, and shoot apical meristem maintenance.