SIS7 — Triticum aestivum

Summary

TRAESCS2D02G251600 (TaSIS7) on wheat chromosome 2D encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity, placing it in the carotenoid oxygenase family. This gene is associated with abscisic acid (ABA) biosynthesis and metabolism, seed dormancy and maturation, anther development, fruit ripening, and responses to red/far-red light, salt, hyperosmotic salinity, gibberellin, and salicylate. It is linked to thylakoid and chloroplast localization, as well as lycopene, beta-carotene, and xanthophyll anabolism, and carotene breakdown. TaSIS7 has been connected to traits including ethylene sensitivity, tiller number, photosynthetic rate, root length, and salt tolerance. Related genes in other species are linked to drought tolerance, ABA accumulation, seed dormancy, grain size, and pre-harvest sprouting.