ALK — Triticum aestivum

Summary

TRAESCS7D02G190100 (TaALK, also known as TaSSIIB-7D) on chromosome 7D encodes a starch synthase catalytic domain-containing protein with alpha-1,4-glucan glucosyltransferase activity (EC 2.4.1.21). This gene is associated with starch and amylopectin biosynthesis, endosperm development, and amyloplast localization. It is linked to grain width, grain weight, root volume, root number, heterosis, and cytoplasmic male sterility. Associations also include cellular response to drought, anther dehiscence, pollen sperm cell differentiation, lateral root formation, and SCF-dependent proteasomal ubiquitin-dependent protein breakdown. Studies of related genes in other species link the family to cooking quality, head rice yield, starch gelatinization temperature, amylose-to-amylopectin ratio, grain shape, grain yield, plant height, and heat tolerance.