DA2 — Triticum turgidum subsp. durum

Summary

TRITD7BV1G002890 (symbol DA2, also known as TtDA2, TtYRG1, TtGW2) on durum wheat chromosome 7B encodes a RING-type domain-containing protein with ubiquitin ligase activity and zinc binding. The gene is associated with regulation of seed size, organ growth, cell division, protein ubiquitination, amylopectin and starch anabolism, and NO storage. It has been linked to grain weight, grain size, grain yield, amylose content, starch content, protein content, grain filling period, and quality traits including nutritional quality and lodging resistance. Associations also extend to cold stress response, senescence, and pathogen resistance. Related genes in other species connect this gene family to seed size, organ size, cell proliferation, leaf senescence, and numerous yield-related traits such as spikelet number, grain dimensions, tiller number, and heading time.