RTY — Brassica oleracea var. botrytis

Summary

BoRTY, located on chromosome 9 of cauliflower (Brassica oleracea var. botrytis), encodes a protein with pyridoxal phosphate-dependent aminotransferase and carbon-sulfur lyase activities. The gene is associated with auxin biosynthesis and glucosinolate biosynthesis, as well as ethylene biosynthesis, L-alanine and tyrosine breakdown, and L-phenylalanine anabolism. BoRTY is linked to regulation of growth by external signals, stomatal closure, fruit ripening, defence response to fungi, and adventitious root development. It is associated with traits including water use efficiency and drought tolerance, and with phenotypes such as auxin accumulation, root and shoot development, hypocotyl elongation, apical hook formation, and powdery mildew resistance. The protein localises to the mitochondria and cytosol. Studies of related genes in other species connect the family to additional traits including seed dormancy and shoot growth angle.