WX1 (TRAESCS4A02G418200) — triticum aestivum

Summary

TRAESCS4A02G418200, also known as WX1 or GBSSI, encodes a granule-bound starch synthase (GBSSI) with starch synthase and glycogen (starch) synthase activity. This enzyme is localized to the amyloplast and is associated with starch and amylopectin biosynthesis. The gene is associated with numerous grain quality and yield traits, including amylose content in endosperm, grain weight, grain texture, grain protein content, starch content, bread loaf volume, and grain filling period. It has also been linked to photosynthetic rate, sucrose content, and maturity time. Studies of related genes in other species connect the family to amylose chain length, grain quality, starch gelatinization temperature, and domestication traits such as panicle density, seed width, and flour color.