SXD1 — Solanum tuberosum
Summary
PGSC0003DMG400029051, designated SXD1 (synonyms VTE1, StVTE1, StATSDX1, ATSDX1) on potato chromosome 8, encodes a protein of the Tocopherol_cycl-like family with tocopherol cyclase and isomerase activity. The product localises to the chloroplast inner membrane, thylakoid and envelope, and the plasma membrane. SXD1 is associated with vitamin E anabolism, xanthophyll and chlorophyll metabolism, phloem sucrose loading and carbohydrate export, cellulose anabolism, fatty acid metabolism, and responses to high light, thermal stimulus, oxidative stress and salinity. It is linked to regulation of defence response, signal transduction, inflorescence development and homeostasis. Trait associations include variegated leaf, starch mobilisation, plant height, tocopherol content and composition, photooxidative stress tolerance, resistance to Botrytis cinerea, metal and salt stress tolerance, anthocyanin accumulation, and vascular development. Studies of related genes in other species connect the family to drought tolerance, oxidative stress tolerance and plastochromanol-8 synthesis.
Annotations
- Chromosome
- 8
- Related genes
- SXD1, VTE1
- GO terms
- homeostasis, salinity response, PG, Isomerase Activity, GO:0010205, vitamin E anabolism, xanthophyll metabolism, chlorophyll metabolism
- Publications
- 18810749, 23299430, 23713813, 37026385, 16290217, 29194404, 18452591, 25749732
- Traits
- Lacks Both Zeaxanthin and Tocopherols, Tocopherol-deficient, DMPBQ Accumulation, Tocopherol-deficient, ER Fatty Acid Desaturation Deficiency, Suppressed Stress Response, Complete Absence of All Tocopherol Forms, No Lipid Peroxidation Under High Light at Low Temperature, Extreme High Light Sensitivity, Leaf Bleaching Under Light Stress, Tocopherol-deficient, Increased Anthocyanin, Reduced Growth Under Low Temperature, tocopherol biosynthesis