WAXY — Solanum tuberosum
Summary
PGSC0003DMG400012111, known as WAXY or StGBSS1 on potato chromosome 8, encodes a granule-bound starch synthase (GBSS) with alpha-1,4-glucan glucosyltransferase activity (EC 2.4.1.242). This enzyme is localized to the chloroplast starch grain and amyloplast, where it is associated with amylose biosynthesis and starch granule initiation. The gene is linked to starch composition traits including amylose-to-amylopectin ratio, starch digestibility, and starch yield, as well as agronomic traits such as root yield, stem dry weight, and seed width. WAXY is also associated with response to biotic stimulus, detection of virus, and downregulation of photosynthesis. Related genes in other species link the GBSS family to amylose content and organ size.
Annotations
- Chromosome
- 8
- Related genes
- WAXY, PTST, GBSS1, GRF2
- GO terms
- Response To Stimulus, structural organization, Wound Healing, CRISPR-cas System, homeostasis, syngamy, taste, Regeneration
- Publications
- 31694903, 15247402, 8674533, 28422008, 12942327, 11851916, 15656970, 23393426
- Traits
- seedling growth, signal transduction, calcium signaling, Reduced Photosystem II Yield, Pale Green, Stunted Growth, Reduced amylose and starch granule bound GBSS, reduced starch granule bound GBSS, nitrate assimilation, S34, starch metabolism