https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2018, Vol. 45 ›› Issue (1): 1-10.doi: 10.16420/j.issn.0513-353x.2017-0195

• 研究论文 •    下一篇

苹果bZIP转录因子基因MdAREB2功能的初步研究

刘亚静,马齐军,路 静,郝玉金,由春香*   

  1. 山东农业大学园艺科学与工程学院,作物生物学国家重点实验室,农业部黄淮地区园艺作物生物学与种质创制重点实验室,山东泰安 271018
  • 出版日期:2018-01-25 发布日期:2018-01-25

Primary Analysis of the Function of bZIP Transcription Factor Gene MdAREB2 in Apple

LIU Yajing,MA Qijun,LU Jing,HAO Yujin,and YOU Chunxiang*   

  1. State Key Laboratory of Crop Biology,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, Ministry of Agriculture,College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an,Shandong 271018,China
  • Online:2018-01-25 Published:2018-01-25

摘要: 对‘嘎拉’苹果中的1个bZIP转录因子基因MdAREB2(序列号:MDP0000248567)进行功能初步研究。蛋白进化树分析表明,苹果MdAREB2与拟南芥AtAREB2具有很高的同源性。利用PlantCare数据库进行启动子顺式作用元件的预测分析,MdAREB2启动子序列中存在脱落酸响应元件ABRE。实时定量PCR检测表明,MdAREB2明显受ABA诱导。拟南芥种子萌发阶段经过0.5和2 μmol · L-1 ABA处理后发现突变体abi5中过量表达MdAREB2能够恢复对ABA的敏感性。拟南芥幼苗生长阶段,经过20 μmol · L-1 ABA处理后发现,突变体abi5中过量表达MdAREB2能够部分恢复对ABA的敏感性。

关键词: 苹果, bZIP, 转录因子, MdAREB2, 功能研究

Abstract: A bZIP transcription factor gene MdAREB2(MDP0000248567)was cloned from‘Gala’apple(Malus × domestica Borkh.). The evolutionary tree analysis indicated that MdAREB2 had the very high homology with AtAREB2. The promoter of MdAREB2 was analyzed and predicted by PlantCare databases,and the results showed that the promoter sequence contained abscisic acid response element ABRE. Quantitative real-time PCR showed that MdAREB2 was significantly induced by ABA. This study found that with 0.5 μmol · L-1 ABA and 2 μmol · L-1 ABA treatment,excessive expression of MdAREB2 in mutant abi5 could restore its sensitivity to ABA in seed germination stage. In the seedling growth stage,with 20 μmol · L-1 ABA treatment,excessive expression of MdAREB2 in mutant abi5 could partially restore its sensitivity to ABA.

Key words: apple, bZIP, transcription factor, MdAREB2, function analysis