| 大豆对SMV SC-7株系群的抗性遗传与基因定位 |
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| 引用本文： | 战勇,喻德跃,陈受宜,盖钧镒. 大豆对SMV SC-7株系群的抗性遗传与基因定位[J]. 作物学报, 2006, 32(6): 936-938 |
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| 作者姓名： | 战勇 喻德跃 陈受宜 盖钧镒 |
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| 作者单位： | 1.南京农业大学大豆研究所/国家大豆改良中心/作物遗传与种质创新国家重点实验室, 江苏南京210095;2.中国科学院遗传与发育生物学研究所, 北京100101 |
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| 基金项目： | 中国科学院资助项目;科技部科研项目;国家科技攻关项目;江苏省自然科学基金;南京农业大学校科研和教改项目 |
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| 摘 要： | 科丰1号×南农1138-2的P1、P2、F1和180个重组自交家系接种SC-7株系群的鉴定表明，P1与F1全抗，P2全感，说明抗性为显性；重组自交家系抗、感按1∶1分离，说明抗性由一对基因控制。利用王永军等的遗传连锁图对SC-7株系群的抗性基因进行连锁分析，将抗病基因Rsc-7定位于N8-D1b＋W连锁群上，并与已定位的5个抗性基因中的3个连锁，还有一个与之相连锁的标记LC5T，其排列顺序和遗传距离为Rsa (30.6 cM) Rsc-7 (22.1 cM) Rn3 (10.3 cM) Rn1 (15.8 cM) LC5T。
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| 关 键 词： | 大豆 大豆叶病毒(SMV) SC-7株系群 抗性遗传 基因定位 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-12-15 |
Inheritance and Gene Mapping of Resistance to SMV Strain SC-7 in Soybean |
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| ZHAN Yong,YU De-Yue,CHEN Shou-Yi,GAI Jun-Yi. Inheritance and Gene Mapping of Resistance to SMV Strain SC-7 in Soybean[J]. Acta Agronomica Sinica, 2006, 32(6): 936-938 |
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| Authors: | ZHAN Yong YU De-Yue CHEN Shou-Yi GAI Jun-Yi |
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| Affiliation: | 1.Soybean Research Institute of Nanjing Agricultural University; National Center for Soybean Improvement; and National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing 210095, Jiangsu;2.Institute of Genetics of Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | The P1, P2, F1 and 180 RILs of Kefeng 1×Nannong1138-2 were inoculated with the SMV strain SC-7 for identification of their resistance. The results showed Kefeng 1 being resistant, Nannong 1138-2 being susceptible, F1 being resistant, and the RILs segregating in a 1:1 ratio, which indicated that a dominant gene controlled the resistance to SC-7. With linkage analysis, the resistance gene Rsc-7 was located on the linkage group N8-D1b+W and linked with three of five resistance genes and a RFLP maker LC5T. The order and genetic distance of linked genes were Rsa (30.6 cM) Rsc-7 (22.1 cM) Rn3 (10.3 cM) Rn1 (15.8 cM) LC5T. |
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| Keywords: | Soybean Soybean Mosaic Virus(SMV) Strain SC-7 Inheritance of resistance Gene mapping |
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