SUS2 — Daucus carota subsp. sativus

Summary

DCAR_013161 (symbol SUS2, preferred name DcSUS2) on carrot chromosome 4 encodes a protein with alpha-1,3-mannosyltransferase activity and transglycosidase activity, belonging to the ALG2 and Glyco_trans_1 families. The gene is associated with oligosaccharide-PP-dolichol assembly, cellulose anabolism, sucrose metabolism, root development, and signal transduction, and its product localises to the endomembrane system. DcSUS2 has been connected to sucrose content and sugar content. Studies of related genes in other species link the family to fruit sweetness, fruit weight, fruit size, stem length, stem diameter, root mass density, and heterosis.