华北农学报 ›› 2010, Vol. 25 ›› Issue (3): 38-42. doi: 10.7668/hbnxb.2010.03.009

所属专题: 甜瓜 生物技术

• 论文 • 上一篇    下一篇

甜瓜PGIP基因的克隆及表达初步分析

段玉娟1, 郭庆勋1, 刘志伟1, 宋阳1, 怀凤涛2   

  1. 1. 吉林大学, 植物科学学院, 吉林 长春 130062;
    2. 东北农业大学, 园艺学院, 黑龙江 哈尔滨 150030
  • 收稿日期:2010-04-16 出版日期:2010-06-28
  • 通讯作者: 郭庆勋(1966-),男,黑龙江人,副教授,博士,主要从事园艺植物种质资源与生物技术研究。
  • 作者简介:段玉娟(1986-),女,陕西人,在读硕士,主要从事辣椒种质资源研究.
  • 基金资助:
    吉林大学农学部博士启动基金项目(430505010203);长春市科技局国际合作计划项目(2D5070046202)

Cloning and Expression of PGIP Gene from Cucumis melon L.

DUAN Yu-juan1, GUO Qing-xun1, LIU Zhi-wei1, SONG Yang1, HUAI Feng-tao2   

  1. 1. College of Plant Science, Jilin University, Changchun 130062, China;
    2. College of Horticulture of Northeast Agricultural University, Harbin 150030, China
  • Received:2010-04-16 Published:2010-06-28

摘要: 以甜瓜叶片基因组DNA为模板,PGIP基因保守序列设计引物,PCR扩增到1条全长978 bp的目的片段。该基因包含有1个完整的开放阅读框,没有内含子,编码326个氨基酸,其编码的氨基酸序列中含有一段典型的亮氨酸重复序列。序列比对表明:该基因编码的氨基酸序列与GenBank中的PGIP基因氨基酸序列(AAP41199)同源性为100%;RT-PCR表达分析表明,该基因在甜瓜叶、茎、根、果实中表达,在花中不表达。为植物分子抗病育种提供了1条基因资源。

关键词: 甜瓜, PGIP基因, 基因克隆, 表达

Abstract: A target fragment with a full length of 978 bp was amplified with genomic DNA of Cucumis melon L leaves as the templates and the conservative sequences of PGIP gene as the primers.This sequence had a full open reading frame encoding the polygalacturonase-inhibiting protein.The total ORF were comprised by 975 bp of deoxynucleotide encoding 325 amino acid.A conserved leucine-rich fragmenthad existed in the derived protein sequence.Sequencing analysis showed that it was 100% identical with the sequences of PGIP gene which had been cloned.RTPCR analysis showed that the PGIP gene was expressed in roots, stems, leaves and fruits of Cucumis melon L.As a result, a gene resource was provided for molecular breeding of plants.

Key words: Cucumis melon L., PGIP Gene, Genetic cloning, Expression

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引用本文

段玉娟, 郭庆勋, 刘志伟, 宋阳, 怀凤涛. 甜瓜PGIP基因的克隆及表达初步分析[J]. 华北农学报, 2010, 25(3): 38-42. doi: 10.7668/hbnxb.2010.03.009.

DUAN Yu-juan, GUO Qing-xun, LIU Zhi-wei, SONG Yang, HUAI Feng-tao. Cloning and Expression of PGIP Gene from Cucumis melon L.[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(3): 38-42. doi: 10.7668/hbnxb.2010.03.009.

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