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园艺学报 ›› 2010, Vol. 37 ›› Issue (8): 1213-1219.

• 果树 • 上一篇    下一篇

珠美海棠MzWRKY基因家族盐胁迫应答模式研究

蒋阿维,张素维,孙杨吾,褚欣然,赵 宇,许雪峰,孔 瑾*   

  1. (中国农业大学农学与生物技术学院,北京市果树逆境生理与分子生物学实验室,北京 100193)
  • 收稿日期:2010-03-29 修回日期:2010-05-05 出版日期:2010-08-25 发布日期:2010-08-25
  • 通讯作者: 孔 瑾

Expression Analysis of WRKY Family in Response to Salt Stress in Malus zumi Mats

JIANG A-wei,ZHANG Su-wei,SUN Yang-wu,CHU Xin-ran,ZHAO Yu,XU Xue-feng,and KONG Jin*   

  1. (Laboratory of Stress Physiology and Molecular Biology for Fruit Tree,College of Agriculture and Biotechnology,China Agricultural University,Beijing 100193,China)
  • Received:2010-03-29 Revised:2010-05-05 Online:2010-08-25 Published:2010-08-25
  • Contact: KONG Jin

摘要:

对苹果属植物现有的58个WRKY 的EST序列进行分析,得到了37条uniESTs。珠美海棠(Malus zumi Mats)是耐盐的优良苹果砧木,能在土壤全盐含量为0.6%的盐碱地上存活。根据已知的37条uniESTs序列,通过半定量RT-PCR研究了珠美海棠中MzWRKY基因家族的盐应答模式。28个MzWRKY基因能检测到RT-PCR的产物,其中21个基因受盐诱导,1个受盐抑制。根据MzWRKY基因盐应答模式可将这些基因分为两组,基因表达模式的差异说明MzWRKY在珠美海棠的盐应答中角色的多样性。

关键词: 珠美海棠, WRKY转录因子, 盐胁迫, 半定量RT-PCR

Abstract: Sequence assembly from 58 Malus WRKY ESTs resulted in 37 uniESTs. Malus zumi Mats is a salt-tolerant rootstock of apple,which could survive in 0.6% total salt content of land. Primers were designed in M. zumi Mats according to the 37 uniESTs,semi-quantitative RT-PCR was applied to reveal the expression patterns of MzWRKY gene family in response to salt stress. RT-PCR products of 28 MzWRKY genes were detectable, 21 MzWRKYs were up-regulated and 1 MzWRKY was down regulated under salt stress. According to the peak hour,the MzWRKYs were classified into 2 groups. The different expression patterns of MzWRKY genes suggested that WRKY proteins play various roles in response to salt stress in M. zumi Mats.

Key words: Malus zumi Mats, WRKY transcription factor, salt stress, semi-quantitative RT-PCR

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