Identification and mapping of a rice blast resistance gene Pi-g(t) in the cultivar Guangchangzhan
文献类型: 外文期刊
作者: Zhou, JH;Wang, JL;Xu, JC;Lei, CL;Ling, ZZ
作者机构:
关键词: gene mapping;Magnaporthe grisea;Oryza sativa;Pyricularia oryzae;resistance gene;simple sequence repeats
期刊名称: PLANT PATHOLOGY
ISSN: 0032-0862
年卷期: 2004 年 53 卷 2 期
页码:
收录情况: SCI
摘要: A single dominant blast resistance gene was identified in Chinese indica rice (Oryza sativa) cv. Guangchangzhan (GCZ), which shows complete resistance to Japanese isolate Ken53-33 of Magnaporthe grisea. Genetic analysis of the backcross (BC1) and second-generation (F-2) populations from a cross between susceptible cv. Lijiangxintuanheigu (LTH) and GCZ indicated that the resistance was conferred by one dominant gene. This gene was mapped on the long arm of chromosome 2 and flanked by RM166 and RM208 at distances of 4.00+/-4.90 and 6.30+/-4.89 cM (centiMorgans), respectively. It was designated tentatively as Pi-g(t).
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