Article
Japanese morning glory dusky mutants displaying reddish-brown or purplish-gray flowers are deficient in a novel glycosylation enzyme for anthocyanin biosynthesis, UDP-glucose:anthocyanidin 3-O-glucoside-2''-O-glucosyltransferase, due to 4-bp insertions in the gene.
The Plant journal : for cell and molecular biology - 1 May 2005
Morita Yasumasa, Hoshino Atsushi, Kikuchi Yasumasa, Okuhara Hiroaki, Ono Eiichiro, Tanaka Yoshikazu, Fukui Yuko, Saito Norio, Nitasaka Eiji, Noguchi Hiroshi, Iida Shigeru
Abstract excerpt
Bright blue or red flowers in the Japanese morning glory (Ipomoea nil) contain anthocyanidin 3-O-sophoroside derivatives, whereas the reddish-brown or purplish-gray petals in its dusky mutants accumulate anthocyanidin 3-O-glucoside derivatives. The Dusky gene was found to encode a novel glucosyltransferase, UDP-glucose:anthocyanidin 3-O-glucoside-2''-O-glucosyltransferase (3GGT), which mediates the glucosylation...
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