SIS7 — Triticum aestivum

Summary

TRAESCS5B02G375900 (TaSIS7) on bread wheat chromosome 5B encodes a protein with a Carotenoid_Oase domain and has carotenoid dioxygenase activity and 9-cis-epoxycarotenoid dioxygenase activity. The gene is associated with abscisic acid anabolism, carotene breakdown, and seed dormancy, as well as detection of biotic stimulus, response to red or far red light, and stress-activated MAPK cascade. It has been linked to traits including grain yield, tiller number, salinity tolerance, photosynthetic rate, and ethylene sensitivity. The encoded protein localises to the thylakoid and chloroplast stroma. Studies of related genes in other species connect the NCED family to drought tolerance, salt tolerance, cold tolerance, pre-harvest sprouting, grain size, and abscisic acid accumulation under stress.