Natural allelic variations of TCS1 play a crucial role in caffeine biosynthesis of tea plant and its related species
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- 作者：Ji-Qiang Jin ; Ming-Zhe Yao ; Chun-Lei Ma ; Jian-Qiang Ma ; Liang Chen ; liangchen@mail.tricaas.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Allelic variation ; Caffeine synthase ; N-methyltransferase ; Purine alkaloid ; Tea plant
- 刊名：Plant Physiology and Biochemistry
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：100
- 期：Complete
- 页码：18-26
- 全文大小：2800 K
文摘
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Diverse allelic variations were observed in TCS1 among section Thea plants.
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Three new TCS1 alleles were isolated and identified from specific tea germplasms.
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Amino acid residue 269 influences TCS1 enzyme activity and substrate selectivity.
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The molecular mechanism of low caffeine tea germplasms was revealed.
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Natural allelic variations of TCS1 play a crucial role in caffeine biosynthesis.