茶树抗逆相关基因ERF的克隆与表达特性分析

doi:10.13305/j.cnki.jts.2011.01.009

茶叶科学 ›› 2011, Vol. 31 ›› Issue (1): 53-58.doi: 10.13305/j.cnki.jts.2011.01.009

茶树抗逆相关基因ERF的克隆与表达特性分析

陈林波^1,2, 房超¹, 王郁¹, 李叶云¹, 江昌俊^1*, 梁名志²

1. 安徽农业大学茶叶生物化学与生物技术教育部重点实验室,安徽合肥 230036;
2. 云南省农业科学院茶叶研究所,云南勐海 666201

收稿日期:2010-07-26 修回日期:2010-11-27 出版日期:2011-02-15 发布日期:2019-09-06
作者简介:陈林波（1980— ）,男,贵州道真人,硕士研究生,助研,主要从事茶树生理与分子生物学研究。
基金资助:
国家科技支撑计划（2008BADC0B03）、国家自然科学基金（30871568）和安徽省自然科学基金（090411014）

Cloning and Expression Analysis of Stress-resistant ERF Genes from Tea Plant [Camellia sinensis (L.) O. Kuntze]

CHEN Lin-bo^1,2, FANG Chao¹, WANG Yu¹, LI Ye-yun¹, JIANG Chang-jun^1*, LIANG Ming-zhi²

1. Key Laboratory of Tea Biochemistry & Biotechnology, Ministry of Education,Anhui Agricultural University, Hefei 230036, China;
2. Tea Research Institute, Yunnan Academy of Agricultural Science, Menghai 666201, China

Received:2010-07-26 Revised:2010-11-27 Online:2011-02-15 Published:2019-09-06

摘要/Abstract

摘要： 对利用cDNA-AFLP技术所获得的茶树低温诱导差异表达片段TDF,通过RACE方法获得含完整编码区序列的茶树ERF基因cDNA克隆,其开放阅读框编码212个氨基酸,包含一个保守的结构域AP2/ERF,与多种植物ERF蛋白具有高度同源性。qRT-PCR分析表明,茶树ERF基因受低温、乙烯、脱水、NaCl等上调表达,最大表达量分别是诱导前的121.1、22.6、2.6和2.2倍。在不同组织器官中,茶树ERF基因在转录水平上存在显著差异,成熟叶片中表达最高,其次是芽,而根和茎中表达量较低且相当,花和种子中表达极低。推测该基因在茶树响应非生物胁迫中发挥重要作用以及在组织中的表达受到严格控制。

关键词: 茶树, ERF基因, 基因克隆, qRT-PCR, 表达分析

Abstract: For A TDF, which has been gained from genes expressed differentially in tea plant under cold stress using cDNA-AFLP, containing a complete coding sequence cDNA was cloned by RACE,named CsERF, and contains an ORF, which encodes a polypeptide of 212 amino acids including a conserved AP2 domains. Sequence alignment showed that CsERF protein shared high identity with other plants. qRT-PCR analysis showed that ERF gene was up-regulated by cold, ethylene, dehydration, NaCl and the maximum expression were 121.1, 22.6, 2.6, 2.2 times higher than before treatment, respectively. For different tea organs, transcriptional level of the ERF gene was the highest in mature leaves, the next was in bud, the third was in root and stem, and the lowest in flower and seed. It deduced that ERF gene was very important for tea plant in response to abiotic stress and was strictly controlled in expression of different organs.

Key words: Camellia sinensis, ERF Transcription Factor, gene clone, qRT-PCR, expression analysis

中图分类号:

S571.1
Q786

陈林波, 房超, 王郁, 李叶云, 江昌俊, 梁名志. 茶树抗逆相关基因ERF的克隆与表达特性分析[J]. 茶叶科学, 2011, 31(1): 53-58. doi: 10.13305/j.cnki.jts.2011.01.009.

CHEN Lin-bo, FANG Chao, WANG Yu, LI Ye-yun, JIANG Chang-jun, LIANG Ming-zhi. Cloning and Expression Analysis of Stress-resistant ERF Genes from Tea Plant [Camellia sinensis (L.) O. Kuntze][J]. Journal of Tea Science, 2011, 31(1): 53-58. doi: 10.13305/j.cnki.jts.2011.01.009.

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茶树抗逆相关基因ERF的克隆与表达特性分析

Cloning and Expression Analysis of Stress-resistant ERF Genes from Tea Plant [Camellia sinensis (L.) O. Kuntze]

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