RFS — Beta vulgaris subsp. vulgaris

Summary

BvRFS (RFS, RS5, SIP1) on sugar beet chromosome 1 encodes a protein with glycosyl hydrolase 36 and aldolase_TIM domains, and exhibits raffinose synthase and galactinol-raffinose galactosyltransferase activities. The gene is associated with raffinose family oligosaccharide biosynthesis, stachyose and mannitol anabolism, and sucrose anabolism. It is linked to response to oxidative stress and thirst, and localises to the cytoplasm. Associations include photosynthetic rate, cytoplasmic male sterility, and abiotic stress tolerance. Studies of the Arabidopsis relative RS5 connect the family to seed germination, desiccation tolerance, and raffinose accumulation, while sequence similarity links the family to traits including raffinose content, drought tolerance, leaf water potential, seed viability, and plant height.