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茶叶科学 ›› 2008, Vol. 28 ›› Issue (4): 249-254.doi: 10.13305/j.cnki.jts.2008.04.011

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低温胁迫下茶树基因表达的差异分析

邹中伟, 房婉萍*, 张定, 段云裳, 黎星辉*   

  1. 南京农业大学茶叶科学研究所,江苏 南京 210095
  • 收稿日期:2008-04-18 出版日期:2008-08-15 发布日期:2019-09-12
  • 通讯作者: *,fangwp@njau.edu.cn
  • 作者简介:邹中伟(1984— ),男,硕士研究生,主要从事茶叶生物化学与生物技术研究。
  • 基金资助:
    教育部高校博士点基金(20060307024、20070307020); 中国博士后科学基金(20070411061); 常州市科技攻关项目(CE2007210)

Analysis of Differential Expression Genes in Cold-induced Tea Plant

ZOU Zhong-wei, FANG Wan-ping*, ZHANG Ding, DUAN Yun-shang, LI Xing-hui*   

  1. Tea Science Research Institute, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2008-04-18 Online:2008-08-15 Published:2019-09-12

摘要: 利用cDNA-AFLP技术分析了茶树在低温胁迫下的基因表达差异。用16对引物(256个组合)对三个样品池进行了差异条带的筛选,结果表明,在冷胁迫不同处理时期相关基因表达存在显著差异,共获得了86个差异片段。在选择回收的10条差异表达cDNA片段中,经克隆测序,Blast序列同源性检索,显示其中片段1与一种低温和盐胁迫响应蛋白有77%的同源性,片段5与拟南芥冷诱导表达相关60 s ribosomal protein L7(RPL7B)有89%的同源性;片段8与一种逆境诱导蛋白(Stress-induced H1-Histone protein)有79%的同源性;片段9与干旱条件下的EST序列有着较高的同源性,其它6个片段在GenBank数据库中未找到相似序列,可能为新基因。

关键词: cDNA-AFLP, 茶树, 冷胁迫, 表达差异

Abstract: The differential expression was investigated between cold-induced and normal environment in tea plant (Camellia sinensis) with cDNA-AFLP (cDNA Amplified Fragments Length Polymorphism). Expression profiles were generated around 86 special cDNA fragments (16 pairs primer, 256 primer combinations). Ten differentially expressed transcript-derived fragments were isolated. Cha1 revealed similarities (77%) to one kind of low temperature and salt responsive protein in Arabidopsis thaliana. Cha5 revealed similarities (89%) to Arabidopsis thaliana 60 S ribosomal protein L7 (RPL7B), ChaH8 had high similarities (79%) to Nicotiana tabacum A10 mRNA for stress-inducible H1 histone-like protein. Cha9 had high similarities to Populus EST from severe drought-stressed opposite wood. Other 6 fragments showed no homology to the known sequences in GenBank, perhaps they were new genes.

Key words: cDNA-AFLP, tea plant (Camellia sinensis), cold-stress, expression

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