华北农学报 ›› 2010, Vol. 25 ›› Issue (5): 56-60. doi: 10.7668/hbnxb.2010.05.012

所属专题: 生物技术

• 论文 • 上一篇    下一篇

桂花苯丙氨酸解氨酶基因的克隆与序列分析

张威威1, 许锋1, 张芙蓉1, 王燕1, 程水源2   

  1. 1. 长江大学, 园艺园林学院, 湖北, 荆州, 434025;
    2. 黄冈师范学院, 生命科学与工程学院, 湖北, 黄州, 438000
  • 收稿日期:2010-08-08 出版日期:2010-10-28
  • 作者简介:张威威(1981-),男,河南周口人,在读硕士,主要从事分子生物学研究.
  • 基金资助:
    教育部2005年新世纪优秀人才支持计划(NCET-04-0746);湖北省教育厅高校产学研合作资助项目(CXY2009B009);长江大学博士基金(0010113)

Molecular Cloning and Sequence Analysis of a Phenylalanine Ammonia-lyase Gene from Osmanthus fragrans

ZHANG Weiwei1, XU Feng1, ZHANG Furong1, WANG Yan1, CHENG Shui yuan2   

  1. 1. College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China;

    2. College of Life Science and Engineering, Huanggang Normal University, Huangzhou 438000, China
  • Received:2010-08-08 Published:2010-10-28

摘要: 利用一对简并引物,从桂花(Osmanthus fragrans)中克隆得到苯丙氨酸解氨酶(PAL)基因的cDNA片段,命名为OfPAL,GenBank登录号为GU991822.OfPAL长866 bp,编码288个氨基酸.通过核苷酸和蛋白质序列多重比较,发现OfPAL与其他植物的PAL基因高度同源.OfPAL编码的蛋白质序列包含与橄榄、烟草、辣椒PAL蛋白质相同的脱氨基位点和催化活性位点.PAL系统进化树显示,OfPAL与菊科植物的PAL基因亲缘关系较近.本研究通过克隆OfPAL基因,可为桂花对不良环境的抵御能力以及桂花类黄酮积累方面的研究奠定基础.

关键词: 桂花, 苯丙氨酸解氨酶, 基因克隆, 序列分析

Abstract: A phenylalanine ammonia-lyase(PAL) gene cDNA was cloned from Osmanthus fragrans by using a pair of degenerated primers. The PAL cDNA fragment of O. fragrans(designated as OfPAL) was 866 bp length and encoded a 288 amino acid protein. OfPAL was found to have extensive homology with those of other plant PAL genes via multiple alignments. The deamination sites and catalytic active sites in PAL protein of Canarium album,Nicotiana tabacum and Capsicum annuum were also found in OfPAL. Phylogenetic tree analysis revealed that OfPAL had closer relationship with PALs from Asteraceae plants than from other plants. The cloning of OfPAL could be a basis for the study of O. fragrans on its resistant to the environment and the accumulation of flavonoids.

Key words: O. fragrans, Phenylalanine ammonia-lyase, Molecular cloning, Sequence analysis

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引用本文

张威威, 许锋, 张芙蓉, 王燕, 程水源. 桂花苯丙氨酸解氨酶基因的克隆与序列分析[J]. 华北农学报, 2010, 25(5): 56-60. doi: 10.7668/hbnxb.2010.05.012.

ZHANG Weiwei, XU Feng, ZHANG Furong, WANG Yan, CHENG Shui yuan. Molecular Cloning and Sequence Analysis of a Phenylalanine Ammonia-lyase Gene from Osmanthus fragrans[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(5): 56-60. doi: 10.7668/hbnxb.2010.05.012.

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