GW2 — Triticum turgidum subsp. durum

Summary

TRITD7AV1G261430, the durum wheat GW2 gene on chromosome 7A, encodes a RING-type zinc finger domain-containing protein with ubiquitin ligase activity. This gene is associated with the regulation of seed size, cell division, amylopectin and starch anabolism, protein ubiquitination, and NO storage, and its product localises to the cytoplasm. GW2 is associated with grain weight, grain yield, seed weight, grain size, amylose content, starch content, protein content, and grain filling period. Studies of related genes in other species link the family to grain width, length, thickness, shape, number, and appearance, as well as flour and grain protein content, plant height, heading time, tiller and panicle number, spikelet fertility and sterility, seed shattering and dormancy, leaf width and colour, chlorophyll content, and heterosis.