华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (10): 76-79.

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盐藻 Psy 基因保守序列的克隆及同源性分析

姜建国1 严媛1 宋冬林2   

  1. 1.华南理工大学 食品与生物工程学院,广东 广州510640;2.中国科学院 武汉病毒研究所,湖北 武汉430072)
  • 收稿日期:2003-09-25 出版日期:2004-10-20 发布日期:2015-09-08
  • 通信作者: 姜建国(1964-),男,汉族,博士,副研究员,主要从事海洋天然产物方面的研究.
  • 作者简介:姜建国(1964-),男,汉族,博士,副研究员,主要从事海洋天然产物方面的研究.
  • 基金资助:
    国家自然科学基金资助项目(20076020)

Cloning and Homology Analysis of the Conservative Sequence of Phytoene Synthase Gene from Dunaliella Salina

Jiang Jian- guo1 Yan Yuan1 Song Dong- lin2   

  • Received:2003-09-25 Online:2004-10-20 Published:2015-09-08
  • Contact: 姜建国(1964-),男,汉族,博士,副研究员,主要从事海洋天然产物方面的研究.
  • About author:姜建国(1964-),男,汉族,博士,副研究员,主要从事海洋天然产物方面的研究.

摘要: 文中根据两种藻———Dunaliellabardawil和Haematococcuspluvialis的PsycDNA保守序列以及 6种植物———Arabidopsisthaliana , Oryzasative , Tageteserecta , Lycopersi conesculentum , Capsicumannuum和Daucuscarota的Psy基因氨基酸保守序列设计了上游引物 5 -GAGTACGCCAAGACCTTCTA - 3 和下游引物 5 -GTTGTCATAGT CATTCTTCTC - 3 .以盐藻基因组为模板、以 4 6~ 35℃每循环递减 0 .5℃的退火温度扩增获得的大小约为 2 4 90bp的片段 , 经NCBI/BlastP同源性分析推测其为Psy基因的部分片段 .


关键词: 杜氏盐藻, 八氢番茄红素合成酶, 保守序列, 同源性分析

Abstract: In this paper, according to the cDNA conservative sequence of Psy from two species of microalgae (Dunaliella bardawil and Haematococcus pluvialis) and the amino acid sequences of Psy from six species of plants (Arabidopsis thaliana, Oryza sative, Tagetes erecta, Lycopersicon esculentum, Capsicum annuum and Daucus carota) , the forward primer, namely, 5'-ACGCCAAGACCTTCTA-3', and the reverse primer, namely, 5'-GTTGTCATAGTCATTCTTCTC-3' were designed. The amplification by using D.salina genomic DNA as the temple was then performed with an annealing temperature reduction of 0.5 ℃ per cycle in 46~35 ℃, thus obtaining a amplified fragments of about (2 490 bp, ) which was finally identified as partial fragment of the Psy gene from D.salina by the homology analysis of NCBI/BlastP.

Key words: Dunaliella salina, phytoene synthase, conservative sequence, homology analysis