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园艺学报 ›› 2024, Vol. 51 ›› Issue (11): 2540-2554.doi: 10.16420/j.issn.0513-353x.2024-0395

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

福建省番茄青枯病菌遗传多样性分析及其抗性砧木的筛选

王荣波1, 王海云2, 张前荣3, 蔡松龄1, 李本金1, 张美祥4, 刘裴清1,*()   

  1. 1 福建省农业科学院植物保护研究所,福建省作物有害生物监测与治理重点实验室,福州 350013
    2 福建省福州市永泰县种植业服务中心,福州 350799
    3 福建省农业科学院作物研究所,福州 350013
    4 陕西师范大学生命科学学院,西安 710119
  • 收稿日期:2024-05-28 修回日期:2024-09-08 出版日期:2024-12-12 发布日期:2024-11-25
  • 通讯作者:
  • 基金资助:
    国家自然科学基金项目(32072400); 福建省农业科学院“5511”协同创新工程项目(XTCXGC2021011); 福建省农业科学院“5511”协同创新工程项目(XTCXGC2021017); 厦门市重大科技项目(3502Z20221018); 福建省农业科学院国家自然科学基金延伸研究项目(GJYS202204); 福建省省属公益类竞争性项目(2023R1070); 福建省省属公益类竞争性项目(2023R1072)

Genetic Diversity of Ralstonia solanacearum Strains Isolated from Fujian Province and Evaluation of Tomato Rootstocks for Resistance to Bacterial Wilt

WANG Rongbo1, WANG Haiyun2, ZHANG Qianrong3, CAI Songling1, LI Benjin1, ZHANG Meixiang4, LIU Peiqing1,*()   

  1. 1 Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests,Institute of Plant Protection,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China
    2 Yongtai County Crop Cultivation Service Center,Fuzhou 350799,China
    3 Crops Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China
    4 College of Life Sciences,Shaanxi Normal University,Xi’an 710119,China
  • Received:2024-05-28 Revised:2024-09-08 Published:2024-12-12 Online:2024-11-25

摘要:

2021—2022年,从中国福建省5个主要番茄种植区分离得到62株青枯病菌株(Ralstonia solanacearum)。通过演化型特异性多重聚合酶链式反应(phylotype-specific multiplex polymerase chain reaction,Pmx-PCR)、生理小种和生化型的鉴定,发现所有菌株均属于演化型Ⅰ和生理小种1,其中61株为生化型Ⅲ,1株为非典型生化型。基于egl基因部分序列的系统发育分析进一步将演化型Ⅰ细分为序列变种14、15、16、17和34,其中序列变种15是主要优势变种。对13个番茄砧木品种进行了青枯菌抗性评估,结果显示,不同砧木品种对不同序列变种的青枯菌表现出明显的抗性差异,‘桂砧1号’和‘威尔神根’对福建省的优势菌系表现出广谱抗性。

关键词: 番茄, 青枯劳尔氏菌, 遗传多样性, 砧木, 抗病性

Abstract:

In this study,62 strains of Ralstonia solanacearum were isolated in 2021 to 2022 from five tomato-growing areas in Fujian,China. Using phylotype-specific multiplex PCR(Pmx-PCR),the biochemical and race tests,all strains were identified as phylotype I and race 1. Of these,61 strains were identified as belonging to biovar Ⅲ,while one strain was classified as atypical biovar. The strains were further divided five different sequevars(14,15,16,17,and 34)based on polymorphisms in the endoglucanase(egl)gene. Among the five sequevars,sequevar 15 was the predominant type in Fujian Province. In addition,the resistance of 13 tomato rootstock cultivars to R. solanacearum was evaluated,revealing significant differences in resistance among the cultivars to different sequence types of the pathogen. It is noteworthy that two rootstock cultivars,‘Guizhen 1’and‘Weier Shengen’,exhibited broad-spectrum resistance to the predominant strains in Fujian Province.

Key words: tomato, Ralstonia solanacearum, genetic diversity, rootstock, disease resistance