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 ›› 2025, Vol. 52 ›› Issue (9): 2317-2328.doi: 10.16420/j.issn.0513-353x.2024-0750

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

胡萝卜番茄红素ε-环化酶基因DcLCYE启动子活性分析及互作因子筛选

王雅慧1, 张雨晴1, 张榕蓉1, 刘佩卓1, 梁毅2, 周建华3, 熊爱生1,*()   

  1. 1 南京农业大学园艺学院作物遗传与种质创新利用全国重点实验室,农业农村部华东地区园艺作物生物学与种质创制重点实验室, 南京 210095
    2 北京市农林科学院蔬菜研究所, 北京 100097
    3 郑州市农业科技研究院, 郑州 450040
  • 收稿日期:2025-04-17 修回日期:2025-07-21 出版日期:2025-09-25 发布日期:2025-09-24
  • 通讯作者:
  • 基金资助:
    国家自然科学基金青年科学基金项目(32402551); 江苏省自然科学基金青年基金项目(BK20241562); 国家资助博士后研究人员计划项目(GZC20240721); 江苏省卓越博士后计划项目(2024ZB102); 江苏省高校优势学科项目(PAPD)

Analysis of Promoter Activity and Screening of Interaction Factors of Carrot Lycopene ε-Cyclase Gene DcLCYE

WANG Yahui1, ZHANG Yuqing1, ZHANG Rongrong1, LIU Peizhuo1, LIANG Yi2, ZHOU Jianhua3, XIONG Aisheng1,*()   

  1. 1 College of HorticultureNanjing Agricultural University/State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization/Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Nanjing 210095, China
    2 Beijing Vegetable Research Center of Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
    3 Zhengzhou Agricultural Science and Technology Research Institute, Zhengzhou 450050, China
  • Received:2025-04-17 Revised:2025-07-21 Published:2025-09-25 Online:2025-09-24

摘要: 分别从胡萝卜‘黑田五寸’‘红玉八号’‘本红金时’‘玫瑰红’‘大禹美人指’和‘贝塔’中克隆得到长度为970 bp的DcLCYE基因启动子序列,并对其进行生物信息分析。结果显示,胡萝卜DcLCYE基因启动子区域含有多种光响应元件、激素响应元件以及转录因子结合位点等。利用不同长度DcLCYE基因启动子缺失片段驱动GUS报告基因表达,在胡萝卜中进行稳定表达检测启动子活性,结果表明起始密码子上游610 bp长的启动子区域具有较强的活性。对不同胡萝卜品种DcLCYE基因启动子进行序列比较,发现表型相近的品种DcLCYE基因启动子序列相似性更高,启动子差异可能会影响DcLCYE在不同胡萝卜品种中的转录。构建胡萝卜cDNA文库,利用DcLCYE启动子诱饵载体,采用酵母单杂交系统筛选与DcLCYE基因启动子互作的上游调控因子,阳性克隆包括数个抗氧化酶蛋白、热激蛋白、锌指蛋白和水解酶蛋白等,还筛选到可能在胡萝卜类胡萝卜素积累调控中发挥作用的MYB、bHLH以及bZIP等转录因子。

关键词: 胡萝卜, 番茄红素, 启动子, 酵母单杂交, 转录因子

Abstract:

The 970 bp promoter sequence of DcLCYE was cloned and bioinformatics analysis was carried out from carrot‘Kurodagosun’‘Hongyu 8’‘Benhong Jinshi’‘Meiguihong’‘Dayu Meirenzhi’and‘Beita’,respectively. The results showed that the promoter region of carrot DcLCYE contained various light response elements,hormone response elements and transcription factor binding sites. GUS reporter expression was driven by promoter deletion fragments of DcLCYE with different lengths,and promoter activity was detected by stable expression in carrot. The results showed that the promoter region of 610 bp upstream of the initiation codon had stronger promoter activity. By comparing the sequences of DcLCYE promoters of different carrot varieties,it was found that the sequences of DcLCYE promoters of carrot varieties with similar phenotypes were more consistent. The differences of promoters may affect the transcription of DcLCYE in different carrot varieties. A carrot cDNA library was constructed,and the upstream regulatory factors interacting with DcLCYE promoter were screened by yeast one-hybrid system. Positive clones included several antioxidant proteins,heat shock proteins,zinc finger proteins,hydrolase proteins,etc. Transcription factors such as MYB,bHLH and bZIP,which may play roles in the regulation of carrot carotenoid accumulation were also screened.

Key words: carrot, lycopene, promoter, yeast one-hybrid, transcription factor