Inheritance and Mechanism of Resistance to Rice Stripe Disease in cv. Zhendao 88, a Chinese Rice Cultivar
文献类型: 外文期刊
第一作者: Zhou, Tong
作者: Zhou, Tong;Wang, Lei;Fan, Yongjian;Cheng, Zhaobang;Zhou, Yijun;Nelson, Scot C.;Hu, John S.
作者机构:
关键词: gene;molecular markers;RM229: SSR marker;OPO11: RAPD marker;virus resistance;resistance inheritance;single-tiller inoculation;marker-assisted progeny selection program
期刊名称:JOURNAL OF PHYTOPATHOLOGY ( 影响因子:1.789; 五年影响因子:1.574 )
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年卷期:
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收录情况: SCI
摘要: Mechanisms of resistance to rice stripe disease in a Chinese rice cultivar (Oryza sativa L., cv. Zhendao 88) were determined, and molecular markers for the resistance gene were identified. Single tillers at the seedling stage were inoculated with Rice stripe virus (RSV) and its vector, the small brown planthopper (SBPH) Laodelphax striatellus Fallen, to test for non-preference and antibiosis. The inheritance of resistance in the F-2 and F-2 : 3 lines from the cross cvs Zhendao 88x Wuyujing No. 3 was also examined by single-tiller inoculation. Cv. Zhendao 88 was highly resistant to RSV and weakly resistant to SBPH. The resistance gene was mapped by SSR and RAPD analyses to rice chromosome 11 within 4.7 cm of a SSR marker RM229 and a RAPD marker OPO11. Data and inheritance analysis indicated that rice stripe disease resistance in cv. Zhendao 88 was derived principally from resistance to RSV and controlled by a single dominant gene. Breeding for rice stripe resistance could be accelerated by using cv. Zhendao 88 as a resistant parent if the linked marker for virus resistance were used in a marker-assisted progeny selection programme.
分类号: Q945
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