| 番茄材料LA1589抗疮痂病T3小种基因初步定位 |
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| 引用本文： | 孙会军,刘小茜,李文慧,杨文才.番茄材料LA1589抗疮痂病T3小种基因初步定位[J].河北农业大学学报,2011,34(6):65-69. |
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| 作者姓名： | 孙会军 刘小茜 李文慧 杨文才 |
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| 作者单位： | 中国农业大学农学与生物技术学院蔬菜系,北京,100193 |
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| 基金项目： | 国家自然自然科学基金项目(30972003) |
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| 摘 要： | 番茄疮痂病病原菌T3小种是严重威胁我国番茄生产的优势小种,采用抗病品种防治该病害是唯一经济、有效而又安全的途径,而抗性遗传研究和抗病基因的鉴定是利用抗性资源的基础.为此,本研究利用感病材料Super Sioux与野生醋栗番茄材料LA1589杂交获得的F2分离群体分析了LA1589对T3小种的抗性遗传,并对抗性基因进行了...
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| 关 键 词： | 番茄疮痂病 抗性基因定位 分子标记辅助鉴定 |
Preliminary mapping of a gene in tomato accession LA1589 conferring resistance to race T3 of bacterial spot |
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| SUN Hui-jun
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LIU Xiao-xi
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LI Wen-hui
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YANG Wen-cai.Preliminary mapping of a gene in tomato accession LA1589 conferring resistance to race T3 of bacterial spot[J].Journal of Agricultural University of Hebei,2011,34(6):65-69. |
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| Authors: | SUN Hui-jun LIU Xiao-xi LI Wen-hui YANG Wen-cai |
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| Institution: | (Department of Vegetable Science,College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China) |
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| Abstract: | Race T3 is the predominant race of tomato bacterial spot that threatens tomato production in China.The use of resistant cultivar is an economic,effective and safe approach to control the disease.Understanding the genetics of resistance and identification of resistant genes is the basis of utilizing resistance sources.In this study,F2 population derived from a cross between susceptible variety Super Sioux and resistant accession LA1589 was used to analyze the genetic basis of resistance to tomato bacterial race T3 and to map the resistance gene in LA1589.The results showed that the resistance to race T3 in LA1589 was conditioned by a single dominant gene on chromosome 11.Lines with resistance to tomato bacterial spot race T3 and tomato bacterial speck race 0 were obtained through marker-assisted selection and disease evaluation.These results will provide fundamental information for fine-mapping of the resistance gene and marker-assisted selection in breeding tomato lines with resistance to bacterial spot. |
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| Keywords: | bacterial spot of tomato gene mapping marker-assisted selection |
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