南京林业大学学报(自然科学版) ›› 2009, Vol. 33 ›› Issue (04): 24-28.doi: 10.3969/j.jssn.1000-2006.2009.04.005

• 研究论文 • 上一篇    下一篇

油茶苯丙氨酸解氨酶基因的cDNA克隆与序列分析

田晓明,谭晓风*,胡孝义,刘巧,罗茜   

  1. 中南林业科技大学,经济林育种与栽培国家林业局重点实验室,湖南长沙410004
  • 出版日期:2009-08-18 发布日期:2009-08-18
  • 基金资助:
    收稿日期:2008-11-18修回日期:2009-03-09基金项目:国家自然科学基金资助项目(30371184);湖南省自然科学基金资助项目(05JJ40125)作者简介:田晓明(1986—),硕士生。*谭晓风(通讯作者),教授,研究方向为经济林栽培育种与林业生物技术。Email: tanxiaofencn@yahoo.com.cn。引文格式:田晓明,谭晓风,胡孝义,等. 油茶苯丙氨酸解氨酶基因的cDNA克隆与序列分析[J]. 南京林业大学学报:自然科学版,2009,33(4):24-28.

Molecular clone and sequence analysis of phenylalanine ammonia lyase gene from Camellia oleifera

TIAN Xiaoming, TAN Xiaofeng*, HU Xiaoyi, LIU Qiao, LUO Qian   

  1. The Key Lab of Non Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha 410004, China
  • Online:2009-08-18 Published:2009-08-18

摘要: 苯丙氨酸解氨酶(phenylalanine ammonia lyase, PAL)是苯丙烷类代谢途径的关键酶之一。以油茶(Camellia oleifera)近成熟种子cDNA文库和EST文库为材料,通过分子克隆方法鉴定了PAL全长cDNA。结果表明:油茶PAL基因的cDNA长2 118 bp,编码705个氨基酸,与其他物种的PAL具有较高的相似性,在进化上高度同源;油茶PAL编码的蛋白质序列包含与水稻、玉米PAL蛋白质相同的脱氨基位点和催化活性位点;PAL系统进化树表明, 油茶PAL基因与灌木类植物的PAL基因聚类关系最近。

Abstract: PAL (phenylalanine ammonia lyase) is one of the key enzymes in plant secondary metabolism. The fulllength cDNA of PAL was identified from the cDNA library and EST library of Camellia oleifera by the method of molecular cloning in this paper. The results showed that the cDNA of C.oleifera PAL contained 2 118 bp, encoding 706 amino acids, and had a high similarity in the evolution of a high degree of homology with other species of PAL; C.oleifera PAL encoded protein sequence contained the same deamination site and catalytic active site with protein PAL of rice and corn. PAL phylogenetic tree analyses revealed that the C. oleifera PAL had closer relationship with PALs from Shrub plants than from other plants.

中图分类号: