NHX8 (TRAESCS3D02G022900) — triticum aestivum

Summary

TRAESCS3D02G022900 (symbol NHX8, also known as SOS1) on wheat chromosome 3D encodes a cyclic nucleotide-binding domain-containing protein with lithium:proton antiporter, sodium:hydrogen exchanger, and potassium:proton antiporter activities. In bread wheat, the gene is associated with salt stress tolerance. Annotated associations link it to sodium import, lithium transport and homeostasis, potassium membrane transport, cell pH regulation, vacuolar membrane transport, hydrogen sulfide and melatonin anabolism, response to superoxide and ozone, lateral root morphogenesis, differential growth, and the TCA cycle. The gene is associated with yield traits, grain size and weight, plant height, leaf chlorophyll content, photosynthetic rate, stomatal resistance, root development and thickness, drought tolerance, high temperature stress response, and disease tolerance. Studies of related genes in other species link the family to sodium exclusion, ion homeostasis, and high-salinity stress tolerance.