VI1 — Oryza sativa Indica Group

Summary

BGIOSGA008363 (VI1) in Indica rice encodes a protein with beta-fructofuranosidase, fructan exohydrolase, inulase, and sucrose alpha-glucosidase activities, placing it in the glycosyl hydrolase family 32. This gene is associated with carbohydrate and starch metabolism, nectar secretion, and responses to abscisic acid, gibberellin, wounding, bacteria, fungi, and salinity. It localizes to the apoplast, cell wall, vacuole, pollen tube, and membrane. In rice, the gene has been linked to cell wall structure, anther and pollen development, sterility, seed size, grain quality, thousand grain weight, domestication, and reproductive and vegetative growth. Associations also include grain filling, panicle number, rachis length, photosynthetic rate, chalkiness, endosperm development, and yield-related traits such as grain length and spikelet number. Studies of related genes in other species connect the family to carbon partitioning, root elongation, seed germination, and stress tolerance.