华北农学报 ›› 2025, Vol. 40 ›› Issue (4): 57-64. doi: 10.7668/hbnxb.20195741

所属专题: 油料作物 植物保护 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

抗大豆花叶病毒基因位点qTsmv-3候选基因克隆及功能分析

林静, 史晓蕾, 徐俊杰, 于翠红, 曹志敏, 唐晓东, 杨春燕 , 张孟臣, 闫龙   

  1. 河北省农林科学院 粮油作物研究所,国家大豆改良中心石家庄分中心,农业农村部黄淮海大豆生物学与遗传育种重点实验室,河北省作物遗传育种重点实验室,河北 石家庄 050035
  • 收稿日期:2025-01-07 出版日期:2025-08-28
  • 通讯作者:
    杨春燕(1965-),女,黑龙江密山人,研究员,硕士,主要从事大豆遗传育种研究。
    闫 龙(1979-),男,河北怀来人,研究员,博士,主要从事大豆遗传育种研究。
  • 作者简介:

    林 静(1991-),女,福建武平人,副研究员,博士,主要从事大豆遗传育种研究。

    林静、史晓蕾为同等贡献作者。

  • 基金资助:
    国家自然科学基金项目(32301806); 河北省自然科学基金项目(C2023301049); 国家大豆产业技术体系(CARS-04-PS06); 河北省农林科学院现代农业科技创新专项(2022KJCXZX-LYS-7)

Cloning and Functional Analysis of Candidate Gene for SMV Resistance Locus qTsmv-3 in Soybean

LIN Jing, SHI Xiaolei, XU Junjie, YU Cuihong, CAO Zhimin, TANG Xiaodong, YANG Chunyan , ZHANG Mengchen, YAN Long   

  1. Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang Branch Center of National Center for Soybean Improvement,Huang-Huai-Hai Key Laboratory of Biology and Genetic Improvement of Soybean,Ministry of Agriculture and Rural Affairs, Hebei Key Laboratory of Crop Genetics and Breeding,Shijiazhuang 050035,China
  • Received:2025-01-07 Published:2025-08-28

摘要:

鉴定抗大豆花叶病毒(SMV)相关基因功能,为培育抗SMV品种提供基因资源。以前期构建抗SMV位点qTsmv-3的近等基因系和转基因拟南芥为材料,对6个MATE候选基因在抗SMV侵染过程中的功能进行分析和鉴定。在大豆基因组中预测到128个MATE家族基因,可分成5个亚家族。qTsmv-3位点的6个MATE候选基因均位于第Ⅰ亚家族,根据公共数据显示它们的表达量或表达部位存在显著差异,Glyma.03G005600在地上部叶和茎中整体表达量最高,Glyma.03G005800在地下部根和根瘤中整体表达量最高。qTsmv-3近等基因系接种SMV后,与#NIL-SMC家系相比,GmICS1GmPR1在#NIL-NC中的表达量分别上调2.40,15.16倍,SMV浓度降低70%,表明qTsmv-3位点的抗性与水杨酸(SA)介导的抗病通路相关。此外,6个MATE候选基因仅有Glyma.03G005300Glyma.03G005600的表达量在近等基因系间出现显著差异,分别下调表达61.0%,82.1%。综合考虑6个MATE基因的表达模式和对SMV侵染后的响应,Glyma.03G005600可能为qTsmv-3位点的关键候选基因。进一步研究发现,携带Glyma.03G005600的转基因拟南芥(OE_MATE)受UV-B胁迫后,AtICS1AtPR1的表达量比野生型(WT)分别显著上调4.22,9.12倍,说明Glyma.03G005600能够显著促进或影响SA信号通路上基因的表达。研究结果初步证实Glyma.03G005600是抗SMV位点qTsmv-3的关键调控基因,为克隆抗SMV关键调控基因奠定了基础。

关键词: 大豆花叶病毒, 抗病候选基因, MATE, qTsmv-3, 功能分析

Abstract:

Soybean mosaic virus(SMV)disease can cause significant yield losses and quality deterioration in soybeans,and breeding resistant cultivars remains the only effective strategy for SMV control.Identifying the functional genes associated with SMV resistance provides essential genetic resources for developing resistant varieties.Six MATE candidate genes involved in SMV resistance were identified using a near-isogenic line(NIL)of the qTsmv-3 locus and a transgenic Arabidopsis thaliana plant.A total of 128 MATE family genes were predicted in the soybean genome,which were classified into five subfamilies.Notably,all six MATE candidate genes located at the qTsmv-3 locus clustered within subfamily Ⅰ,exhibiting significant differences in expression levels and tissue specificity based on public data.Among them,Glyma.03G005600 showed the highest expression in aerial tissues(leaves and stems),while Glyma.03G005800 was predominantly expressed in underground tissues(roots and nodules).Following SMV inoculation,the resistant NIL(#NIL-NC)exhibited a 70% reduction in viral accumulation compared with the susceptible line(#NIL-SMC).Concurrently,the expression levels of GmICS1 and GmPR1,key genes in the salicylic acid(SA)-mediated defense pathway,were upregulated by 2.40,15.16 folds,respectively,in #NIL-NC,indicating that qTsmv-3 confers resistance through SA-dependent signaling.Among the 6 MATE candidate genes,only Glyma.03G005300 and Glyma.03G005600 displayed significant differential expression between NILs,which were down-regulated by 61.0% and 82.1%,respectively.Considering their expression patterns and responses to SMV infection,Glyma.03G005600 was identified as the most promising candidate gene for qTsmv-3.Further,the expression of GmICS1 and GmPR1 in transgenic Arabidopsis thaliana(OE_MATE),which carrying Glyma.03G005600,was significantly up-regulated by 4.22,9.12 folds compared with that of wild type(WT)after UV-B stress.These results strongly indicated that Glyma.03G005600 could significantly enhance or affect the expression of genes in salicylic acid signaling pathway,and preliminarily confirmed that Glyma.03G005600 was a key regulatory gene for qTsmv-3 locus.In all,the results laid a foundation for cloning the key genes regulating SMV resistance and provided gene resources for genetic improvement of SMV resistance in soybean.

Key words: Soybean mosaic virus, Resistance candidate gene, MATE, qTsmv-3, Function analysis

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引用本文

林静, 史晓蕾, 徐俊杰, 于翠红, 曹志敏, 唐晓东, 杨春燕, 张孟臣, 闫龙. 抗大豆花叶病毒基因位点qTsmv-3候选基因克隆及功能分析[J]. 华北农学报, 2025, 40(4): 57-64. doi: 10.7668/hbnxb.20195741.

LIN Jing, SHI Xiaolei, XU Junjie, YU Cuihong, CAO Zhimin, TANG Xiaodong, YANG Chunyan, ZHANG Mengchen, YAN Long. Cloning and Functional Analysis of Candidate Gene for SMV Resistance Locus qTsmv-3 in Soybean[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(4): 57-64. doi: 10.7668/hbnxb.20195741.