HVA22 — triticum aestivum

Summary

TRAESCS7B02G129000, symbol HVA22 and also known as Wrab15, encodes a TB2_DP1_HVA22 domain-containing protein in bread wheat on chromosome 7B. The gene is associated with cold stress tolerance, as observed for WRAB15 in this species, and its product localises to the ER, Golgi complex and membrane. It has been connected to responses to cold temperature, salinity, and abiotic stimuli, as well as to the expression of OsDREB2A and RAP2-1 homolog. Associations with sprouting tolerance, seed color, grain weight, grain yield, plant height, days to flowering, anthesis time, panicle and spike length, protein content, osmotic adjustment, proline content, transpiration rate, and drought and salinity tolerance have been noted. The gene is also linked to seed germination, seed dormancy, abscisic acid response, and maturity date. Studies of related genes in other species connect the family to seed weight, flavonoid content, chlorophyll content, and quality traits.