VI1 — Oryza sativa Indica Group

Summary

BGIOSGA016831 (VI1) from indica rice chromosome 4 encodes a beta-fructofuranosidase (invertase) with fructosyltransferase, exohydrolase, levanase, inulase, and alpha-glucosidase activities, belonging to the glycosyl hydrolase 32 family. The gene is associated with cell wall, anther, pollen development, sterility, seed size, grain quality, thousand grain weight, and domestication traits in rice. It has been linked to nectar secretion, gibberellin response, primary root development, starch and sucrose metabolism, detoxification, responses to bacteria, wounding, salinity, abscisic acid, and fungi. The protein localizes to vacuolar lumen and membrane, pollen tube, stress granules, plant-type cell wall, and extracellular regions. VI1 is also connected to fructan biosynthesis and carbohydrate metabolism pathways. Studies of related genes in other species link the family to male sterility, pollen germination, pathogen response, and root elongation.