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园艺学报 ›› 2023, Vol. 50 ›› Issue (4): 737-753.doi: 10.16420/j.issn.0513-353x.2022-0044

• 研究论文 • 上一篇    下一篇

蓝莓C2H2家族基因在花芽休眠解除中的作用初探

李可1, 申朦晓1, 潘炜浩1, 章诗渲1, 毛欣烨1, 尹亚红1, 李永强1,2,*(), 朱友银3,*(), 郭卫东1,2   

  1. 1.浙江师范大学化学与生命科学学院,浙江金华 321000
    2.浙江省特色经济植物生物技术研究重点实验室,浙江金华 321000
    3.金华职业技术学院,浙江金华 321000
  • 收稿日期:2022-10-08 修回日期:2023-01-21 出版日期:2023-04-25 发布日期:2023-04-27
  • 通讯作者: *(E-mail:lyq@zjnu.cn
    zhuyouyin@jhc.edu.cn
    E-mail:lyq@zjnu.cn;zhuyouyin@jhc.edu.cn
  • 基金资助:
    浙江省农业新品种选育重大科技专项(2021C02066-9);浙江省公益技术项目(LGN21C150011)

Preliminary Investigation of C2H2 Family Genes in Blueberry Flower Bud Dormancy Release

LI Ke1, SHEN Mengxiao1, PAN Weihao1, ZHANG Shixuan1, MAO Xinye1, YIN Yahong1, LI Yongqiang1,2,*(), ZHU Youyin3,*(), GUO Weidong1,2   

  1. 1. College of Chemistry and Life Sciences,Zhejiang Normal University,Jinhua,Zhejiang 321000,China
    2. Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants,Jinhua,Zhejiang 321000,China
    3. Jinhua Polytechnic,Jinhua,Zhejiang 321000,China
  • Received:2022-10-08 Revised:2023-01-21 Online:2023-04-25 Published:2023-04-27
  • Contact: *(E-mail:lyq@zjnu.cnzhuyouyin@jhc.edu.cn) E-mail:lyq@zjnu.cn;zhuyouyin@jhc.edu.cn

摘要:

为了解蓝莓C2H2锌指蛋白在花芽休眠中的功能,通过生物信息鉴定蓝莓C2H2-ZFP基因家族成员,利用转录组数据和荧光定量PCR分析其在花芽内休眠解除过程和外源脱落酸处理下的表达模式。在蓝莓中共鉴定到VcC2H2-ZFP家族79个成员,通过系统进化树和保守基序将其分为3组。分析表明:VcC2H2-ZFP家族成员在蓝莓各器官中均有表达,其中15个在花芽内休眠解除过程中表达存在显著差异,如Vc31g303.5Vc7g51.6Vc16g355.5在深度内休眠时期表达量高,而休眠解除后表达量较低。VcC2H2-ZFP启动子含有大量光反应、防御应激、脱落酸、赤霉素等激素响应元件。外源脱落酸处理花芽能显著促进Vc16g355.5Vc7g51.6Vc31g303.5等的表达。本研究结果揭示蓝莓部分VcC2H2-ZFP可能通过响应脱落酸参与花芽休眠过程的调控。

关键词: 蓝莓, 花芽, 休眠, C2H2家族基因, 脱落酸

Abstract:

In order to explore the function of C2H2 zinc finger protein in blueberry flower bud dormancy,members of VcC2H2-ZFP gene family were identified in blueberry by bioinformatics analysis. The expression pattern of C2H2 genes during the process of flower bud endodormancy release and treatment of exogenous abscisic acid(ABA)were analyzed through transcriptome data and Quantitative Real-time PCR(qRT-PCR). In this study,79 VcC2H2-ZFP family members were identified in blueberry. According to the results of phylogenetic tree and conservative motif analysis,VcC2H2-ZFP family members were divided into three groups. The results of gene expression showed that VcC2H2-ZFP genes family were expressed in all organs of blueberry,among which 15 VcC2H2-ZFP genes were significantly differentially expressed during flower bud endodormancy release;the expression levels of Vc31g303.5Vc7g51.6,and Vc16g355.5 were high at deep endodormancy stage,but decreased with the process of dormancy release. Cis-acting element analysis showed that the promoter of VcC2H2-ZFP genes contained a large number of hormone response elements such as photoreaction,stress defense,ABA,and gibberellin. The results of qRT-PCR showed that exogenous ABA treatment of blueberry flower buds can significantly promote the expression of VcC2H2-ZFP genes such as Vc16g355.5Vc7g51.6,and Vc31g303.5. The results revealed that part of VcC2H2-ZFP might participate in the regulation of blueberry flower bud dormancy by responding to ABA.

Key words: blueberry, flower bud, dormancy, C2H2 family gene, abscisic acid

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