Xinjiang Agricultural Sciences ›› 2024, Vol. 61 ›› Issue (9): 2191-2196.DOI: 10.6048/j.issn.1001-4330.2024.09.013

• Horticultural Special Local Products·Forestry • Previous Articles     Next Articles

Population diversity analysis of 20 commercial tomato cultivars

XU Maomao(), GAO Jie(), LI Junming(), LI Xin, LIU Lei, PAN Feng   

  1. College of Horticulture, Xinjiang Agricultural University, Urumqi 830052 China
  • Received:2024-03-10 Online:2024-09-20 Published:2024-10-09
  • Correspondence author: GAO Jie, LI Junming
  • Supported by:
    The Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences(CAAS-ASTIPIVFCAAS)

20个番茄商业品种群体的多样性分析

徐毛毛(), 高杰(), 李君明(), 李鑫, 刘磊, 潘峰   

  1. 新疆农业大学园艺学院,乌鲁木齐 830052
  • 通讯作者: 高杰,李君明
  • 作者简介:徐毛毛(1998-),女,陕西人,硕士研究生,研究方向为蔬菜学,(E-mail)2656180571@qq.com
  • 基金资助:
    中国农业科学院科技创新工程项目(CAAS-ASTIPIVFCAAS)

Abstract:

【Objective】 This study aims to investigate the genetic diversity of 20 commercial tomato cultivars, screen out tomato varieties with specific disease resistance traits and provide guidance for farmers in variety selection. 【Methods】 SNP markers were used to analyze the genetic relationship clustering, genetic composition, disease resistance genes, and also conduct disease resistance infiltration fragment analysis of 20 commercial tomato varieties. 【Results】 The 20 commercial tomato varieties were divided into two groups, and tomato varieties from the same company were more likely to be grouped together. Among them, Zhongshu 4, Zhongshu 6, and Zhongza 9 from Zhongshu Seed Industry Technology (Beijing) Co., Ltd. were classified into the same type in genetic relationship clustering and genetic composition analysis. In addition, there were genotype differences in the Mi-1.2, Ty-1/3, and Ve disease resistance genes among the 20 commercial tomato varieties. By comparing their genome similarity with the infiltrating donor materials, it was found that most materials contained infiltrating fragments of Mi, Ty-1, Tm-2, and Sw-5. 【Conclusion】 The 20 commercial tomato varieties are divided into two groups, and tomato varieties from the same company are more likely to be grouped together. The specific disease resistance genes and disease resistance infiltration fragments of these materials are of great significance for in-depth understanding of variety germplasm characteristics, promoting agricultural development, increasing farmers' income, and improving agricultural production efficiency.

Key words: tomatoes; commercial cultivars; genetic diversity; anti-disease gene

摘要:

【目的】分析20份番茄商业品种的遗传多样性,筛选具有特异性抗病性状的番茄商业品种,为番茄商业品种选择提供参考。【方法】以20个番茄商业品种为材料借助单核苷酸多态性(SNPs),分析遗传关系聚类、遗传组成成分、抗病基因及抗病渐渗片段。【结果】20个番茄商业品种被分为2个类群,其中中蔬种业科技(北京)有限公司的中蔬4号、中蔬6号和中杂9号在遗传关系聚类和遗传组成成分均被归于同一类型。此外,20个番茄商业品种在Mi-1.2、Ty-1/3、Ve三个抗病基因存在基因型差异,大部分材料含有MiTy-1、Tm-2和Sw-5的渐渗片段。【结论】20个番茄商业品种被分为2个类群,源于同一公司的番茄商业品种更有可能被分于同一群体,这些材料大部分含有MiTy-1、Tm-2和Sw-5渐渗片段。

关键词: 番茄, 商业品种, 遗传多样性, 抗病基因

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