华北农学报 ›› 2014, Vol. 29 ›› Issue (3): 27-31. doi: 10.7668/hbnxb.2014.03.006

所属专题: 玉米 生物技术

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基于cDNA-AFLP技术分析玉米乙烯诱导基因差异表达

霍秀爱, 杨炳艳, 刘云婷, 段会军   

  1. 河北农业大学, 华北作物种质资源研究与利用教育部重点实验室, 河北 保定 071001
  • 收稿日期:2014-03-12 出版日期:2014-06-28
  • 通讯作者: 段会军(1965-),男,河北保定人,教授,博士,主要从事作物生理与分子生物学研究。
  • 作者简介:霍秀爱(1986-),女,河北张家口人,硕士,主要从事作物生理与分子生物学研究。
  • 基金资助:
    国家“十二五”科技支撑计划项目(2011BAD16B08;2012BAD04BO6;2013BAD07B05)

Differential Expression of Ethylene-Induced Genes for Internode Abbreviation of Maize Analyzed with cDNA-AFLP

HUO Xiu-ai, YANG Bing-yan, LIU Yun-ting, DUAN Hui-jun   

  1. Agricultural University of Hebei, North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Baoding 071001, China
  • Received:2014-03-12 Published:2014-06-28

摘要: 为了探讨乙烯利调控玉米生长的分子机理,以郑单958为材料,拔节期叶面喷施225 mL/hm2浓度的乙烯利,同体积清水为对照。在不同时间取茎端分生组织样品,采用cDNA-AFLP(RT-PCR)进行基因差异表达分析。结果表明,利用70条引物共扩增1 635条片段,其中上调表达的有600条,占总条带的36.7%;下调表达的有564条,占总条带的34.5%;无差异表达的有471条,占总条带数的28.8%。选择重复扩增稳定的30条差异片断进行回收测序,经过BlastX比对分析这些差异表达基因片段,按功能可分为信号转导相关基因(6.7%)、抗性相关基因(16.7%)、能量与代谢相关基因(20.0%)、转录因子相关基因(10.0%)、未知功能蛋白(13.3%)和未知基因(33.3%)6大类。乙烯利通过调控谷胱甘肽S-转移酶、天冬氨酸蛋白激酶和生长素诱导蛋白等基因的表达来调控玉米的生长。

关键词: 乙烯利, 玉米, cDNA-AFLP, 差异表达

Abstract: To investigate the molecular mechanisms of ethephon-induced stalk internodes shorten in maize, using maize variety Zhengdan 958, the plant leaves were treated with spraying ethephon(ETH) at 225 mL/ha at early elongation stage, and spraying water as a control.Samples of young stalks were taken and the differentially expressed genes were analyzed with cDNA-AFLP technique.The results showed that 1 635 fragments of expressed genes were obtained with 70 pairs of primers.The expressions of 600 genes were up-regulated(36.7% of the total bands), 564 genes down-regulated(34.5% of the total bands) and the same expressions of 471 genes(28.8% of the total bands) by ethephon induction.Through the BlastX analysis of 30 different gene fragments of TDFs can be divided into six categories by functional analysis, including signal transduction-related genes(accounting for 6.7%), resistance-related genes(accounting for 16.7%), energy and metabolism-related genes(accounting for 20.0%), transcription factor-related genes(accounting for 10%), unknown functional proteins(accounting for 13.3%) and unknown genes(accounting for 33.3%).Ethephon influence the growth of maize through regulating the glutathione S-transferase, aspartic acid protein kinase and auxin-induced protein gene expressions.

Key words: Ethephon, Maize, cDNA-AFLP, Differential expression

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引用本文

霍秀爱, 杨炳艳, 刘云婷, 段会军. 基于cDNA-AFLP技术分析玉米乙烯诱导基因差异表达[J]. 华北农学报, 2014, 29(3): 27-31. doi: 10.7668/hbnxb.2014.03.006.

HUO Xiu-ai, YANG Bing-yan, LIU Yun-ting, DUAN Hui-jun. Differential Expression of Ethylene-Induced Genes for Internode Abbreviation of Maize Analyzed with cDNA-AFLP[J]. journal1, 2014, 29(3): 27-31. doi: 10.7668/hbnxb.2014.03.006.

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