CHS — Solanum tuberosum

Summary

PGSC0003DMG400045296, designated StCHS on potato chromosome 1, encodes a type III polyketide synthase with naringenin-chalcone synthase and tetraketide alpha-pyrone synthase activities (EC 2.3.1.74). The product belongs to the chalcone/stilbene synthase family and localises to the endoplasmic reticulum. StCHS is associated with flavonoid, anthocyanin, phenylpropanoid and polyketide biosynthesis, as well as secondary metabolism, pigmentation, pollen wall assembly, cell wall thickening, sterol homeostasis, and responses to freezing and salt stress. The gene has been connected to petal and leaf colour, anthocyanin and flavonoid content, amylose and carbohydrate content, and drought tolerance. Related genes in other species link the family to additional polyketide synthase activities (EC 2.3.1.333).