Euphytica (2003) 129, 109-117

P.N. Sharma, Y. Ketipearachchi, K. Murata, A. Torii, S. Takumi, N. Mori and C. Nakamura (2003)
RFLP/AFLP mapping of a brown planthopper (Nilaparvata lugens Stål) resistance gene Bph1 in rice
Euphytica 129 (1), 109-117
Abstract: We have constructed a linkage map of the rice brown planthopper (BPH) resistance gene, Bph1. RFLP and AFLP markers were selected by the bulked segregant analysis and used in the mapping study of 262 F₂s that were derived from a cross of `Tsukushibare', a susceptible japonica cultivar, and `Norin-PL3', an authentic japonica Bph1-introgression line. Twenty markers were mapped within a 28.9-cM region containing the Bph1 locus on the long arm of rice chromosome 12. Combining the result of segregation analysis of BPH resistance by the mass seedling test and that of the markers, the Bph1 locus was mapped within a 5.8-cM region between two flanking markers. The closest AFLP markers, em5814N and em2802N, was at 2.7 cM proximal to the Bph1 locus. Together with the previously constructed high-resolution map of bph2 locating the locus at ca. 10 cM proximal to the Bph1 locus, this improved version of the linkage map would facilitate pyramiding these two important BPH resistance genes.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Chiharu Nakamura

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Nilaparvata lugens	Rice (Oryza)