[1]吴跃凡,王宣婷,张晓龙,等.HmF35H基因调控绣球花色转变的机制[J].江苏农业科学,2026,54(13):72-79.
 Wu Yuefan,et al.Mechanism of HmF35H gene regulating color change of Hydrangea flowers[J].Jiangsu Agricultural Sciences,2026,54(13):72-79.
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HmF35H基因调控绣球花色转变的机制()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第13期
页码:
72-79
栏目:
生物技术
出版日期:
2026-07-05

文章信息/Info

Title:
Mechanism of HmF35H gene regulating color change of Hydrangea flowers
作者:
吴跃凡1王宣婷2张晓龙1许卫锋1
1.福建农林大学资源与环境学院,福建福州 350110; 2.福建农林大学戴尔豪西大学联合学院(国际学院),福建福州 350110
Author(s):
Wu Yuefanet al
关键词:
绣球花色转录组HmF35H基因调控机制VIGS技术
Keywords:
-
分类号:
S188;S685.990.1
DOI:
-
文献标志码:
A
摘要:
通过揭示绣球花萼颜色转变的关键基因及其调控机制,为绣球栽培及花色育种提供重要理论依据。对待现蕾期的2加仑规格无尽夏绣球,采用含0、3 mmol/L Al2(SO4)3的霍格兰营养液(pH值4.5)进行不同浓度铝处理。于盛花期采集绣球红[0 mmol/L Al2(SO4)3]、蓝[3 mmol/L Al2(SO4)3]花色植株的花萼样品测定铝含量,同时取根、茎、叶、花萼组织进行转录组测序。通过生物信息学方法筛选差异表达基因进行功能富集分析,并结合病毒诱导基因沉默(VIGS)等基因功能验证技术,系统研究绣球花萼颜色变化的分子机制。结果表明,铝离子在蓝色花萼中的累积量(246 mg/g)显著高于红色花萼(0.55 mg/g)中。对红色和蓝色花萼绣球的不同组织部位进行转录组测序,分别在根、茎、叶、花萼中鉴定出1 443、818、476、342个特有差异基因。对不同组织部位的差异基因进行GO和KEGG富集分析,结果表明,蓝色绣球在多个组织中均表现出显著的转录组特征差异,其中花萼中的特异性差异基因显著富集于苯丙烷类生物合成通路。联合转录组和qPCR分析表明,花青素合成通路中的关键调控点类黄酮3,5-羟化酶基因(HmF35H)在蓝色萼片中特异性表达,与红色萼片相比,该基因表达量显著上调。利用病毒诱导基因沉默技术对HmF35H1基因功能进行验证,结果表明外源添加铝离子处理下,HmF35H基因抑制株系(TRV::HmF35H1)的花色呈红色,从而证实HmF35H基因是铝离子诱导绣球花萼蓝色形成的关键基因。本研究基于转录组学和VIGS技术,发现铝离子通过激活苯丙烷代谢通路中关键基因HmF35H的表达,驱动绣球花萼中花青素修饰过程,从而实现花萼颜色由红向蓝的转变,为绣球栽培及定向花色育种奠定了理论基础与技术支撑。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2025-12-26
基金项目:国家自然科学基金(编号:U25A20695);福建省自然科学基金(编号:2023J02010)。
作者信息:吴跃凡(2001—),男,辽宁抚顺人,硕士,研究方向为植物营养学,E-mail:2330702945@qq.com;共同第一作者:王宣婷(2005—),女,江苏南京人,研究方向为园林植物开发与应用,E-mail:18112999069@163.com。
通信作者:许卫锋,博士,教授,研究方向为植物营养与肥料、作物节水抗旱。E-mail:wfxu@fafu.edu.cn。
更新日期/Last Update: 2026-07-05