GLU8 — Solanum lycopersicum

Summary

SOLYC09G075360.4, also known as GLU8 or SlCel2 on tomato chromosome 9, encodes a protein with cellulase activity and sugar binding, belonging to the glycosyl hydrolase 9 family. In tomato, this gene is associated with fruit firmness, cell wall disassembly, and extracellular localisation. It has also been linked to oxalate secretion, oligosaccharide metabolism, and responses to amino acids. Associations extend to numerous agronomic traits, including fruit weight, size, surface area, and color, as well as cellulose, lycopene, carotenoid, anthocyanin, flavonoid, and chlorophyll content. Additional connections include plant height, root weight and length, leaf width and number, stem diameter, pedicel length, spike weight, percent germination, seedling vigor, water use efficiency, respiration rate, hydrogen peroxide and proline content, and oxidative stress response. Studies of related genes in other species link the family to endoglucanase activity.