华北农学报 ›› 2009, Vol. 24 ›› Issue (5): 59-63. doi: 10.7668/hbnxb.2009.05.013

所属专题: 黄瓜 西瓜 生物技术

• 论文 • 上一篇    下一篇

西瓜和黄瓜乙烯受体ETR1基因片段的克隆与序列比较分析

曹迪1,2, 许勇2, 郭绍贵2, 赵越1, 宫国义2, 张海英2   

  1. 1. 东北农业大学生命科学院, 黑龙江哈尔滨 150030;
    2. 北京市农林科学院蔬菜研究中心, 北京 100097心
  • 收稿日期:2009-02-11 出版日期:2009-10-28
  • 通讯作者: 张海英(1969-),女,北京通州人,副研究员,博士,主要从事蔬菜育种与分子生物学研究。
  • 作者简介:曹迪(1984-),男,安徽宿州人,在读硕士,主要从事蔬菜分子生物学研究。
  • 基金资助:
    国家“863”计划(2006AA10Z1A8);“十一五”国家科技支撑计划(2006BAD01A7-6-02);国家自然科学基金(30570997;30571276);北京市自然科学基金(5062008);北京市科委项目(Z0708050150702)

Cloning and Sequence of ETR1 Gene from Citrullus lanatus and Cucumis sativus

CAO Di1,2, XU Yong2, GUO Shao-gui2, ZHAO Yue1, GONG Guo-yi2, ZHANG Hai-ying2   

  1. 1. Life Science College of Northeast Agricultural University, Harbin 150030, China;
    2. National Engineering Research Center for Vegetables, Beijing Academy Agriculture and Forestry Science, Beijing 100097, China
  • Received:2009-02-11 Published:2009-10-28

摘要: 乙烯受体基因ETR1是乙烯信号转导过程中的关键调控基因。研究根据ETR1基因的保守序列设计引物,以西瓜(Citrullus lanatus(Thunb.)Matsum&Nadai var.lanatus)和黄瓜(Cucumis sativus L.)的基因组DNA为模板进行PCR扩增,获得序列长度分别为1633 bp和1491 bp的基因片段CLETR1CSETR1。序列分析表明,CLETR1CSETR1与Genebank中收录的多条ETR1基因的核苷酸序列同源性在80%~98%,氨基酸序列同源性在75%~98%。西瓜和黄瓜ETR1基因片段的编码序列存在明显的单核苷酸变异,共23个核苷酸位点存在SNPs(Single nucleotide polymor-phisms),其中5个SNPs导致4个编码氨基酸的改变。

关键词: ETR1, 基因克隆, 西瓜, 黄瓜

Abstract: ETR1 was the controlling gene in ethylene signal transduction.A pair of oligo nucleotide primers were designed from conserved domain of ETR1 gene family.PCR amplifications were performed on genomic DNA template of Citrullus lanatus (Thunb.) Matsum &Nadai var.lanatus and Cucumis sativus L.,they produced two fragments of 1633 bp and 1491 bp,named CLETR1 and CSETR1 respectively.The results of Blastn on NCBI Genebank database indicated that many highly matched homologous nucleic acid sequences and amino acid sequences were all ethylene receptor gene,the ratio were 80%-95% and 75%-90% respectively.The single nucleotide variations were found in the conserved sequences between CLETR1 and CSETR1,there were 23 SNPs (single nucleotide polymorphisms) in the encoding region,and 5 of them resulted 4 amino acids difference.

Key words: ETR1, Gene cloning,Citrullus lanatus(Thunb.) Matsum &Nadai var.lanatus, Cucumis sativusL.

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引用本文

曹迪, 许勇, 郭绍贵, 赵越, 宫国义, 张海英. 西瓜和黄瓜乙烯受体ETR1基因片段的克隆与序列比较分析[J]. 华北农学报, 2009, 24(5): 59-63. doi: 10.7668/hbnxb.2009.05.013.

CAO Di, XU Yong, GUO Shao-gui, ZHAO Yue, GONG Guo-yi, ZHANG Hai-ying. Cloning and Sequence of ETR1 Gene from Citrullus lanatus and Cucumis sativus[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(5): 59-63. doi: 10.7668/hbnxb.2009.05.013.

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