SIS7 (TRAESCS2B02G268400) — triticum aestivum

Summary

TRAESCS2B02G268400 (TaSIS7) on wheat chromosome 2B encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity. The gene is associated with ABA biosynthesis and homeostasis, seed dormancy and maturation, anther development, fruit ripening, and responses to red/far-red light, gibberellin, salt, and salicylate. Its product localizes to the chloroplast thylakoid membrane and stroma. TaSIS7 has been linked to abscisic acid concentration, tiller number, photosynthetic rate, root length, seed growth, and salt tolerance. Associations also include drought response, high light stress tolerance, disease susceptibility to Botrytis cinerea, seed dormancy, leaf senescence, stomatal closure, and shoot branching. Studies of related genes in other species connect the family to drought tolerance, salt tolerance, cold tolerance, pre-harvest sprouting, grain size, and lateral root development.