Figure 1

Fine mapping of the BPH15 locus. A, The marker positions of four previously mapped BPH resistant genes. B, Screened recombinant information in the BC₂F₂ family. Numbers under the linkage map indicate the number of recombinants detected between the marker and BPH15. BPH15 was mapped to the region between markers g12140-2 and T6. C, Recombination frequencies between each adjacent DNA marker. The dashed line represents genome average 0.004 cM/kb value. D, Physical map assembled by PCR-screened BAC clones. The dashed line represents the gap where no BAC clones overlapped.