玉米逆境胁迫响应基因ZmbZIP71的克隆与表达分析

从玉米抗旱自交系CN165中克隆得到了与逆境胁迫相关的bZIP(Basic Leucine Zipper Protein)基因ZmbZIP71。Zm-bZIPT1基因的开放阅读框为471bp,编码156个氨基酸,相对分子量为17.59kDa,等电点pI为9.24。ZmbZIP71蛋白包含真核生物中高度保守的bZIP结构域。ZmbZIP71基因编码区的基因组包括2个外显子和1个内含子。利用实时荧光定量PCR方法分析ZmbZIP71基因在玉米不同组织中的表达差异及其在非生物胁迫下的表达模式,结果表明,该基因在玉米的多个组织和器官中均有表达,其中在雄穗和雌穗中的表达量较高。另外,该基因受干旱、低温和...

Full description

Saved in:
Bibliographic Details
Published in植物遗传资源学报 Vol. 12; no. 5; pp. 775 - 781
Main Author 刘彦丹 英生 张登峰 石云素 宋燕春 白志川 王天宇 黎裕
Format Journal Article
LanguageChinese
Published 西南大学园艺园林学院,重庆400716 2011
中国农业科学院作物科学研究所,北京100081%中国农业科学院作物科学研究所,北京,100081%西南大学园艺园林学院,重庆,400716
Subjects
Online AccessGet full text
ISSN1672-1810

Cover

More Information
Summary:从玉米抗旱自交系CN165中克隆得到了与逆境胁迫相关的bZIP(Basic Leucine Zipper Protein)基因ZmbZIP71。Zm-bZIPT1基因的开放阅读框为471bp,编码156个氨基酸,相对分子量为17.59kDa,等电点pI为9.24。ZmbZIP71蛋白包含真核生物中高度保守的bZIP结构域。ZmbZIP71基因编码区的基因组包括2个外显子和1个内含子。利用实时荧光定量PCR方法分析ZmbZIP71基因在玉米不同组织中的表达差异及其在非生物胁迫下的表达模式,结果表明,该基因在玉米的多个组织和器官中均有表达,其中在雄穗和雌穗中的表达量较高。另外,该基因受干旱、低温和ABA的胁迫诱导上调表达,受盐胁迫下调表达。因此推测ZmbZIP71基因可能在玉米的逆境胁迫响应过程中具有重要作用。
Bibliography:LIU Yan-dan , YING Sheng ZHANG Deng-feng, SHI Yun-su SONG Yan-chun BAI Zhi-chuan, WANG Tian-yu , LI Yu (1 College of Horticulture and Gardening, Southwest University, Chongqing 400716 ; 2 Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081 )
Maize; bZIP transcription factor; Abiotic stress; Expression profiles
11-4996/S
A bZIP (Basic Leucine Zipper Protein) gene, ZmbZIP71, was isolated from maize inbred line CN165. Sequence analysis showed that ZmbZIP71 included a 471bp open reading frame (ORF) encoding a polypeptide of 156 amino acids with predicted molecular mass of 17.59 kDa and pI of 9.24. The deduced protein of ZmbZIP71 was predicted to contain the bZIP structural domain,which was highly conserved in eukaryotes. The ge- nomic DNA of ZmbZIP71 was composed of two exons and one intron in its coding region. The results of real-time PCR analysis indicated that ZmbZIP71 was up-regulated by drought, cold (4~C) and ABA, and down-regulated by NaC1 treatment in seedlings. The tissue-s
ISSN:1672-1810