AM25 — Sorghum bicolor

Summary

SbAM25 (SORBI_3003G026400) on sorghum chromosome 3 encodes an aquaporin family protein with transmembrane transporter activity for lactate, arsenite, glycerol, borate, urea and water, and is also annotated with histone H3T11 kinase activity and protein binding. The gene is associated with transport and responses to boron, arsenic, hypoxia and glucose, as well as phenylpropanoid anabolism, defense response regulation and nodulation. It localises to the plasma membrane, lateral plasma membrane, peribacteroid membrane, endoplasmic reticulum and nucleus. Phenotypic associations link SbAM25 to boron uptake and deficiency tolerance, arsenite tolerance and uptake, aluminum tolerance and translocation, urea transport, pollen development and pollination. Studies of related genes in other species connect the family to boron content, seed shattering, drought sensitivity, biomass yield, grain number, water use efficiency and salinity tolerance.