DA2 — Triticum aestivum

Summary

TRAESCS7D02G107500, designated TaDA2 on chromosome 7D of bread wheat, encodes a Sip5/DA2 family protein with ubiquitin ligase activity and zinc binding capability. The gene is associated with the regulation of seed size, organ growth, protein ubiquitination, starch anabolism, and cell death. It is linked to numerous agronomically important traits including grain weight, grain length, grain number, flour and grain protein content, test weight, ear weight, spike length, tiller number, plant height, peduncle length, awn length, days to heading, grain filling period, leaf chlorophyll content, proline content, salinity tolerance, drought tolerance, and stripe rust resistance. The gene is also associated with responses to salinity, salicylic acid signaling, and the transcription factor network involved in salinity response. Related genes in other species link this family to grain size, grain yield, seed size, organ size, cell proliferation, and drought resistance.