Identification and mapping of a novel blast resistance gene Pi57(t) in Oryza longistaminata
Identification and mapping of a novel blast resistance gene Pi57(t) in Oryza longistaminata
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长雄稻新型抗稻瘟病基因Pi57(t)的鉴定与定位
DOI：
10.1007/s10681-015-1402-7
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发表时间：
2015-02
期刊：
影响因子：
1.9
通讯作者：
Tao D
中科院分区：
文献类型：
--
作者：
Xu P;Dong L;Zhou J;Li J;Zhang Y;Hu F;Liu S;Wang Q;Deng W;Deng X;Tharreau D;Yang Q;Tao D
长雄稻具有较强的生物和非生物抗性，是亚洲栽培稻改良的优良基因库。因此，挖掘和利用O. longistaminata在水稻育种中具有重要的意义，可以拓宽其遗传基础。目的探索O.长雄籼稻RD 23是泰国籼稻品种，与籼稻品种长雄籼稻O. longistaminata为母本，培育了一套BC 3F 7导入系。在自然稻瘟病圃中进行了抗性筛选，获得了3个高抗稻瘟病的诱导系。利用IL-E1454/RD 23的BC_4F_2群体，将一个新的显性抗稻瘟病基因Pi 57（t）定位在水稻第12染色体上，SSR标记RM 27892和RM 28093位于1.0cM范围内。Pi 57（t）对云南稻瘟病菌具有广谱抗性。中国，和抗谱区分了5个已知的稻瘟病R基因位于染色体12。这些结果表明，Pi 57（t）是一个很有希望的云南水稻改良基因。中国
Oryza longistaminata with strong resistance to biotic and abiotic stress was regarded as an excellent gene pool for Asian cultivated rice improvement. Thus, mining and utilization of favorable genes/alleles from O. longistaminata would be important in breeding for Oryza sativa by broadening its genetic basis. To explore blast resistance genes from O. longistaminata, RD23, an indica cultivar from Thailand, was crossed with an accession of O. longistaminata and a set of BC3F7 introgression lines (ILs) was raised. The ILs were screened for blast resistance in natural blast nursery, and three ILs exhibiting high level of resistance to blast disease were obtained. Using a BC4F2 population of IL-E1454/RD23, a novel dominant blast resistant gene, designated as Pi57(t), was mapped on rice chromosome 12 flanked by SSR markers RM27892 and RM28093 within 1.0 cM. Pi57(t) conferred a broad-spectrum resistance to Magnaporthe oryzae isolates collected from Yunnan, P. R. China, and the resistant spectrum was distinguished from five known blast R genes located on chromosome 12. Our results suggest that Pi57(t) would be a promising gene for rice improvement in Yunnan, P. R. China.
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影响因子：
56.9
作者：
Tanksley, SD;McCouch, SR
通讯作者：
McCouch, SR
DOI：
--
发表时间：
2000
期刊：
Kasetsart Journal. Natural Sciences
影响因子：
--
作者：
Tao Dayun;P. Sripichitt
通讯作者：
Tao Dayun;P. Sripichitt
影响因子：
3.3
作者：
Jinhua Xiao;Jiming Li;S. Grandillo;S. Ahn;L. Yuan;S. Tanksley;S. McCouch
通讯作者：
Jinhua Xiao;Jiming Li;S. Grandillo;S. Ahn;L. Yuan;S. Tanksley;S. McCouch
影响因子：
5.4
作者：
Hua, Lixia;Wu, Jianzhong;Pan, Qinghua
通讯作者：
Pan, Qinghua
DOI：
10.1073/pnas.84.8.2363
发表时间：
1987-04-01
影响因子：
11.1
作者：
LANDER, ES;GREEN, P
通讯作者：
GREEN, P