Based on only 42 plants in which N vs. bk2 and semi-sterile vs. fertile plants were segregating 1:1, there were seven recombinants and 35 parental combinations, 16.7% recombination. Based on only 15 plants in which each of the three markers was segregating 1:1 there was 33.3% recombination between bm4 and the interchange point, 46.7% between bm4 and bk2 indicating the probable order is bk2 T bm4.
Charles R. Burnham
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