D61 — Triticum aestivum

Summary

TRAESCS3D02G246500 (TaD61, also known as TaBRI1) on wheat chromosome 3D encodes a leucine-rich repeat receptor-like kinase (LRR-RLK) with a BRI1 island domain, possessing transmembrane receptor protein tyrosine kinase activity. This gene is associated with brassinosteroid receptor kinase activity and the activation of brassinosteroid-mediated signalling, as well as negative regulation of brassinosteroid biosynthetic process. TaD61 is linked to numerous agronomic traits including grain weight and width, spikelet number, shoot growth angle, leaf shattering, drought sensitivity, and responses to powdery mildew, aphids, and aluminum stress. It has been associated with root system development, phloem development, anther wall tapetum cell differentiation, and regulation of seedling development. Related genes in other species link the family to seed yield, thermotolerance, and defense responses.