DA2 — Triticum aestivum

Summary

TRAESCS6B02G215300 (TaDA2, also known as TaGW2) on bread wheat chromosome 6B encodes a Sip5/DA2 family protein with ubiquitin ligase activity and zinc binding capability. This gene is associated with the regulation of seed size, organ growth, starch anabolism, protein ubiquitination, and SCF-dependent proteasomal protein breakdown. It has been linked to numerous agronomically important traits including grain weight, grain length, grain number, flour protein content, test weight, ear weight, spike length, plant height, peduncle length, tiller number, days to heading, drought tolerance, and grain filling period. The gene is also associated with cell death, endocytosis, nuclear export, epigenetic regulation of gene expression, and inhibition of RNAi. Related genes in other species link the family to grain size, grain yield, seed weight, cell proliferation, and leaf senescence.