FR — Zea mays

Summary

ZM00001EB389720 (ZmFR, also known as ZmCYFBP, HCEF1, or CFBP1) on maize chromosome 9 encodes a fructose-1,6-bisphosphatase (EC 3.1.3.11) with additional protein kinase activity, metal and protein binding, and belongs to the FBPase class-1 family. The enzyme is associated with C4 photosynthesis, gluconeogenesis, the Calvin cycle, and carbohydrate, sucrose, and fructose metabolism. It is linked to numerous agronomic traits including net photosynthetic rate, water use efficiency, starch and sucrose content, seed weight, seedling vigor, root morphology, and tolerance to drought, cold, salinity, and flooding. The gene is also associated with programmed cell death, tube development, and responses to abscisic acid and osmotic stress. Studies of related genes in other species link the family to tiller bud outgrowth and sucrose supply, and to root growth.