SPS — Nicotiana attenuata

Summary

A4A49_27050 (SPS) on chromosome 11 of coyote tobacco (Nicotiana attenuata) encodes a protein with sucrose-phosphate synthase, sucrose-phosphate phosphatase, and sucrose synthase activities, and belongs to the SPS_C, SPS_pln, SPP-like_dom, Sucrose_synth, Glyco_trans_1, and HAD_sf domains. The gene is associated with sucrose biosynthesis and metabolism, UDP anabolism, phloem loading, nectar secretion, primary growth, flower development, pollen wall assembly, starch breakdown, and regulation of stomatal movement and abscisic acid-mediated signaling. It is linked to traits including vegetative vigor, seed yield, sucrose and starch content, photosynthetic rate, flowering time, shoot branching, root development, cold and oxidative stress responses, disease tolerance, and salt tolerance. Related genes in other species are linked to abscisic acid signaling, stomatal regulation, drought tolerance, and pathogen susceptibility.