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茶叶科学 ›› 2007, Vol. 27 ›› Issue (4): 286-292.doi: 10.13305/j.cnki.jts.2007.04.003

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茶树冷驯化过程中基因表达差异的初步分析

梅菊芬1, 2, 王新超2, 杨亚军2, *, 黎星辉1, *   

  1. 1. 南京农业大学茶叶科学研究所,江苏 南京 210095;
    2. 中国农业科学院茶叶研究所/农业部茶叶化学工程重点实验室,浙江 杭州 310008
  • 收稿日期:2007-05-17 修回日期:2007-08-20 出版日期:2007-12-25 发布日期:2019-09-11
  • 通讯作者: *杨亚军,黎星辉
  • 作者简介:梅菊芬(1982— ),女,硕士研究生,江苏宜兴人,主要从事茶树生理育种与分子生物学研究
  • 基金资助:
    浙江省自然科学基金(Y304448); 教育部高校博士点基金项目(20060307024)和江苏省高技术计划项目(BG2003301)

Preliminary Study on Differential Gene Expression During Cold Acclimation in Tea Plant (Camellia sinensis)

MEI Ju-fen1, 2, WANG Xin-chao2, YANG Ya-jun2, *, LI Xing-hui1, *   

  1. 1. Tea Science Research Constitution of Nanjing Agricultural University, Nanjing 210095, China;
    2. Key Lab of Tea Chemical Engineering, Ministry of Agriculture/Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
  • Received:2007-05-17 Revised:2007-08-20 Online:2007-12-25 Published:2019-09-11

摘要: 采用mRNA差别显示的方法对茶树冷驯化过程中基因差异表达进行了初步研究,从58条差异片段得到稳定扩增的差异片段23条,用RT-PCR的方法鉴定其假阳性,得到5个阳性片段,其中3个片段在冷驯化过程中表达量增加,另外2个片段的表达量降低。经过BLAST比对分析,其中一个片段序列与高粱反式玉米素-O-葡糖基转移酶同源性较高;一个与黄瓜叶绿体合成相关蛋白基因同源性较高;一个为茶树核酮糖-1,5-双磷酸羧化酶/加氧酶小亚基基因片段;一个与细胞色素b亚基有较高同源性;还有两个片段序列比对没有同源序列,可能为新基因。

关键词: 茶树, 冷驯化, 基因表达差异, 特异片段

Abstract: Differential gene expression during cold acclimation was studied by mRNA differential display reverse transcription-PCR (DDRT-PCR) in tea plant (Camellia sinensis). Twenty-three differentially expressed cDNA fragments were steadily re-amplified. Five fragments were confirmed by RT-PCR analysis. Among them, three were up-regulated while other two were down-regulated during the cold acclimation process. Sequencing of three differential fragments revealed homology to putative cis-zeatin-O-glucosyl-transferase of Sorghum (Sorghum bicolor), chloroplast gene for chloroplast product of cucumber(Cucumis sativus),ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit (rbcS) mRNA of tea plant(Camellia sinensis), respectively, while the other two showed no homologous to known genes.

Key words: tea plant (Camellia sinensis), cold acclimation, mRNA differential display reverse transcription-PCR, fragments

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