Identification of molecular markers linked to rice bacterial blight resistance genes from

2015年第2卷第3期

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《农业科学与工程前沿（英文）》 >> 2015年第2卷第3期 doi: 10.15302/J-FASE-2015070

Identification of molecular markers linked to rice bacterial blight resistance genes from

1. College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321000, China.2. State Key Laboratory Breeding Base for Sustainable Control of Plant Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of the Ministry of Agriculture and Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.3. College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China

录用日期： 2015-11-03 发布日期： 2015-11-10

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摘要

Y73 is a progeny of asymmetric somatic hybridization between cv. Dalixiang and the wild rice species . Inoculation with a range of strains of pv. showed that Y73 had inherited a high level of resistance to rice bacterial blight (BB) from its wild parent. An F population of 7125 individuals was constructed from the cross between Y73 and a BB-susceptible cultivar IR24. After testing 615 SSR and STS markers covering the 12 rice chromosomes, 186 markers were selected that showed polymorphism between Y73 and IR24. Molecular markers linked to the BB resistance genes in Y73 were scanned using the F population and the polymorphic markers. The SSR marker RM128 on chromosome 1, the STS marker R03D159 on chromosome 3 and the STS marker R05D104 on chromosome 5 were found to be linked to the rice BB resistance genes in Y73.

关键词

Oryza meyeriana ; bacterial blight resistance gene ; genetic population ; linkage molecular marker