天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (2): 188-194.doi: 10.16333/j.1001-6880.2016.2.004

• 研究论文 • 上一篇    下一篇

基于cDNA-AFLP技术分析不同种源和地域太子参基因差异表达

华愉教,耿超,王胜男,刘训红*,谷巍,罗益远,刘娟秀,侯娅,马阳   

  1. 南京中医药大学,南京 210023
  • 出版日期:2016-02-29 发布日期:2016-03-07

Analysis of Gene Expression of Pseudostellariae Radix from Different Provenances and Habitats Based on cDNA-AFLP

HUA Yu-jiao,GENG Chao,WANG Sheng-nan,LIU Xun-hong*,GU Wei,LUO Yi-yuan,LIU Juan-xiu,HOU Ya,MA Yang   

  1. Nanjing University of Chinese Medicine,Nanjing 210023,China
  • Online:2016-02-29 Published:2016-03-07

摘要: 研究不同种源和地域太子参的基因差异表达,分离并鉴定相关差异基因。采用cDNA-AFLP 技术分析2个不同种源和地域太子参差异表达基因。筛选6个引物组合进行扩增,从同种源不同地域及同地域不同种源太子参中分别获得44、38条差异表达转录衍生片段(Trivially distributed file system,TDFs),对差异片段进行克隆、序列测定,分别得到27、25个TDFs核苷酸序列。经过BLASTX程序比对,分别有19、16个TDFs有其对应的显著同源序列,其中有7、6个TDFs为已知功能的蛋白,这些蛋白主要参与植物的生长发育、抵御病虫害、提高植物抗非生物胁迫的能力。本研究为揭示太子参药材品质形成的分子机制提供基础资料。

关键词: 太子参, 种源和地域, cDNA-AFLP, 差异表达基因

Abstract: The aim of this study was to investigate gene differential expression in Pesudostellariae Radix from different provenances and habitats,as well as to isolate and evaluate associated differential genes.cDNA-AFLP was applied to analyze the differential expressed genes of Pesudostellariae Radix from two different provenances and habitats.Six primer pairs were selected,using these primer pairs,44 and 38 differentially expressed trivially distributed file system (TDFs),were amplified in Pesudostellariae Radix from same provenances and different habitats as well as same habitats and different provenances,respectively.These TDFs were cloned and sequenced,27 and 25 nucleotide sequences were obtained,respectively.By BLASTX analysis,19 and 16 of them were found with homologous sequences in databases,of which,7 and 6 TDFs had their known function,respectively.These proteins were mainly involved in the growth and development of plants,resisting diseases and insect pests,improving the ability of plants to resist the abiotic stress.Our research provided the basic information for revealing the molecular mechanism of Pesudostellariae Radix.

Key words: Pesudostellariae Radix, provenances and habitats, cDNA-AFLP, differential expressed genes

中图分类号: 

R917