浙江农业科学 ›› 2024, Vol. 65 ›› Issue (1): 81-89.DOI: 10.16178/j.issn.0528-9017.20230461

• 果树与蔬菜 • 上一篇    下一篇

番茄液泡蔗糖转化酶抑制蛋白克隆、生物信息学及表达分析

许洋1(), 程远2, 阮美颖2, 王荣青2, 叶青静2, 姚祝平2, 周国治2, 刘乐承1, 万红建2,*()   

  1. 1.长江大学 园艺园林学院,湖北 荆州 434000
    2.农产品质量安全危害因子与风险防控国家重点实验室 浙江省农业科学院 蔬菜研究所 中澳作物改良中心,浙江 杭州 310021
  • 收稿日期:2023-05-05 出版日期:2024-01-11 发布日期:2024-01-17
  • 通讯作者: 万红建(1980—),男,江苏涟水人,副研究员,博士,主要从事蔬菜遗传育种,E-mail:wanhongjian@sina.com
  • 作者简介:许洋(1998—),女,山东聊城人,硕士,主要从事蔬菜遗传育种,E-mail:15684178597@163.com
  • 基金资助:
    浙江省重点研发计划项目(2021C02052);国家重点研发计划(2018YFD1000800);国家自然科学基金面上项目(32172555);国家自然科学基金面上项目(31772294);浙江省农业(蔬菜)新品种选育重大科技专项(2021C02065);国家现代农业产业技术体系资助项目(CARS-23-G44)

Molecular cloning, bioinformatics and expression analysis of vacuolar invertase inhibitor in tomato

XU Yang1(), CHENG Yuan2, RUAN Meiying2, WANG Rongqing2, YE Qingjing2, YAO Zhuping2, ZHOU Guozhi2, LIU Lecheng1, WAN Hongjian2,*()   

  1. 1. College of Horticulture and Landscape Architecture, Yangtze University, Jingzhou 434000, Hubei
    2. Institute of Vegetable, Zhejiang Academy of Agricultural Sciences/State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/China-Australia Research Centre for Crop Improvement, Hangzhou 310021, Zhejiang
  • Received:2023-05-05 Online:2024-01-11 Published:2024-01-17

摘要:

液泡转化酶抑制蛋白(vacuolar invertase inhibitor,VIF)在调节植物蔗糖代谢,调控生长发育及响应逆境等方面发挥重要作用。本试验从番茄Alisa中克隆到VIF基因(SlVIF)和cDNA序列。结果显示,SlVIF基因与cDNA序列全长均为528 bp,不含有内含子,共编码175个氨基酸。SlVIF蛋白分子量为19.92 ku,理论等电点为5.53,含有一个信号肽序列,保守结构域为PMEI。系统进化关系表明,茄科物种的VIF亲缘关系最近,且基序具有一致性。组织特异性表达结果显示,在不同的番茄材料中,SlVIF的表达模式存在差异,在Heinz番茄中,其在根部有高水平的表达;在LA1589番茄中,其在果实发育的各阶段,尤其是在成熟果实及根部有高水平的表达。说明SlVIF可能通过介导蔗糖代谢影响果实成熟并调控根系生长。SlVIF受到水分胁迫的诱导,响应非生物胁迫过程。

关键词: 液泡转化酶抑制蛋白, 番茄, 蔗糖代谢, 表达

Abstract:

Vacuolar invertase inhibitor (VIF) plays an important role in regulating higher plant sucrose metabolism and responding to abiotic stress. In this study, VIF gene and cDNA sequence were cloned from Alisa. The results indicated that the full length of SlVIF gene and cDNA was 528 bp, without intron region, encoding 175 amino acids. The molecular weight of SlVIF protein was 19.92 ku, and the theoretical isoelectric point was 5.53. It contained a signal peptide sequence, and the conservative domain was PMEI. The phylogenetic relationship exhibited that the VIF of Solanaceae species was the closest and the motifs were consistent. The tissue specific expression results showed that it had different expression patterns in various tomato materials. In Heinz, it had high transcription level in roots. In LA1589, it was highly expressed in all stages of fruit development, especially in mature fruits and roots, which indicated that SlVIF gene may play a role in influencing fruit ripening and regulating root growth by mediating sucrose metabolism. SlVIF was induced by water stress and responded to abiotic stress processes.

Key words: vacuolar invertase inhibitor, tomato, sucrose metabolism, expression

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