BAM1 — Solanum lycopersicum

Summary

SlBAM1 (SOLYC09G091030.3) on tomato chromosome 9 encodes a protein with glycosyl hydrolase family 14 domains, characteristic of beta-amylases, and also carries DNA-binding transcription factor activity and identical protein binding. The gene is associated with cold tolerance, starch degradation and mobilization, maltose accumulation, and regulation of starch metabolism. It has been linked to numerous agronomic traits including fruit firmness, color, shape and size, sugar and reducing sugar content, chlorophyll content, photosynthetic rate, seedling vigor, leaf relative water content, plant height, root length, seed viability, and respiration rate. Additional associations include cell wall thickening, seed growth, anther and male gametophyte development, male fertility, virus movement, disease resistance, and heat and osmotic stress responses. The protein localizes to chloroplast stroma, cytosol, nucleus, endoplasmic reticulum, and secretory vesicles.