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茶叶科学 ›› 2012, Vol. 32 ›› Issue (5): 411-418.doi: 10.13305/j.cnki.jts.2012.05.010

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茶树类黄酮3-O-葡萄糖基转移酶基因的克隆和表达分析

王晓帆1, 田艳维2, 王云生2, 高丽萍2*, 夏涛1*   

  1. 1. 安徽农业大学 教育部茶叶生物化学与生物技术重点实验室,安徽 合肥 230036;
    2. 安徽农业大学生命科学学院,安徽 合肥 230036
  • 收稿日期:2011-10-13 修回日期:2012-02-29 出版日期:2012-10-15 发布日期:2019-09-05
  • 作者简介:王晓帆(1986— ),女,广东珠海人,在读研究生,主要从事茶树次生代谢及分子生物学研究。
  • 基金资助:
    国家自然科学基金(30972401,31170647和31170282)

The Gene Cloning and Expression Analysis of UFGT in Tea Plant [Camellia sinensis (L.) O. Kuntze]

WANG Xiao-fan1, TIAN Yan-wei2, WANG Yun-sheng2, GAO Li-ping2*, XIA Tao1*   

  1. 1. Key Lab of Tea Biochemistry and Biotechnology, Ministry of Education, Anhui Agricultural University, Hefei 230036, China;
    2. School of Biology Science, Anhui Agricultural University, Hefei 230036, China
  • Received:2011-10-13 Revised:2012-02-29 Online:2012-10-15 Published:2019-09-05

摘要: 以茶树叶片为材料,结合同源克隆方法和RACE技术,克隆了1条UFGT基因,命名为CsUFGT。该基因cDNA全长为1526bp,ORF长1380bp,编码459个氨基酸,推测等电点5.96,推测分子量为49.486kDa。该基因编码的蛋白质与葡萄UFGT(P51094.2)的一致性为59%,相似性为75%,其C-端含有植物UGT家族成员特有PSPG基序。荧光实时定量PCR分析表明,该基因在茶树根茎叶中均表达,在第4叶表达量最高,根和茎中表达量较低。

关键词: 茶树, 类黄酮3-O-葡萄糖基转移酶, 基因克隆, 表达分析

Abstract: A glucosyltransferase gene UDP-flavonoid 3-O-glucosyl transferase was isolated from tea plant [Camellia sinensis (L.) O. Kuntze] and named CsUFGT. CsUFGT has 1526bp full length with open reading frame of 1380bp which encodes 459 amino acids. The corresponding protein CsUFGT, with predicted molecular mass 49.486kDa and predicted isoelectric point 5.96, shares 59% identity and 75% similarity with UFGT(P51094.2) in Vitis vinifer. CsUFGT includes a PSPG signal motif of typical plant glucosyltransferase. qRT-PCR analysis showed that the gene expressed in all tissues of tea plant [Camellia sinensis (L.) O. Kuntze], and had high expression in the fourth leaf and low expression level in root and stem.

Key words: Camellia sinensis, flavonoid 3-O-glucosyl transferase, gene cloning, expression analysis

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