Article
Natural allelic variations of TCS1 play a crucial role in caffeine biosynthesis of tea plant and its related species.
Plant physiology and biochemistry : PPB - 1 Mar 2016
Jin Ji-Qiang, Yao Ming-Zhe, Ma Chun-Lei, Ma Jian-Qiang, Chen Liang
Abstract excerpt
Tea caffeine synthase 1 (TCS1) is an enzyme that catalyzes the methylation of N-3 and N-1 and considered to be the most critical enzyme in the caffeine biosynthetic pathway of tea plant. This study shows that TCS1 has six types of allelic variations, namely, TCS1a, TCS1b, TCS1c, TCS1d, TCS1e, and TCS1f, with a 252 bp insertion/deletion mutation in the 5'-untranslated region. Among tea plant and its related...
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