粳稻云引抗稻瘟病基因的遗传分析及其定位 |
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引用本文: | 张建福,王国英,谢华安,凌忠专. 粳稻云引抗稻瘟病基因的遗传分析及其定位[J]. 农业生物技术学报, 2003, 11(3): 241-244 |
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作者姓名: | 张建福 王国英 谢华安 凌忠专 |
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作者单位: | 1. 中国农业大学农业生物技术国家重点实验室,北京,100094 2. 福建省农业科学院,福州,350003 3. 中国农业科学院作物育种栽培研究所,北京,100081 |
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摘 要: | 摘要:用8个稻瘟病菌[Pyricularia grisea (Cooke) Sacc.]系对稻瘟病抗性材料云引进行田间注射接种鉴定。结果表明,云引对接种的8个菌系均表现为抗病反应。用抗病材料云引和感病材料丽江新团黑谷作亲本杂交获得F1,F1自交获得F2群体,用上述8个菌系分别对亲本、F1和F2群体进行田间注射接种,鉴定结果表明云引对所有8个菌系的抗性均表现为单基因控制的分离特性(抗感分离比为3∶1)。利用微卫星标记将云引对四川-43菌系的抗性基因初步定位于水稻的第11号染色体上,与标记RM202的遗传距离为3.8 cM。
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关 键 词: | 关键词:水稻; 稻瘟病; 微卫星标记; 遗传; 基因定位 |
修稿时间: | 2001-12-20 |
Genetic Analysis and Mapping of Blast-resistance Genes in japonica Rice Yunyin from Yunnan Province |
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Abstract: | Abstract: A new blast-resistant, japonica rice, Yunyin, was identified with 8 races of Pyricularia grisea (Cooke) Sacc). The results showed that Yunyin was resistant to 8 blast races. Yunyin was crossed with a blast-susceptible rice variety Lijiangxintuanheigu. Both parents and their progeny (F1, F2 and F3) were inoculated with 8 races of Magnaporthe grisea by injection in the field. The results showed that the blast-resistance to the 8 races in Yunyin was controlled by single gene. A blast-resistant locus to Sichuan-43 was mapped in chromosome 11 by SSR marker. The linkage value was 3.8 cM with RM202. |
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