Figure 1. Amplification of
polymorphic DNA bands produced by RGAP and RAPD primers.

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(A).
Illustartion of a band (arrow), showing polymorphism between the resistant and
suceptible bulks and parents, produced by RGAP primer pair (P2,P10); (B) the
random primer OPF13 amplified a band (arrow) in the susceptible, but not
resistant, DNA samples; RB: resistant
bulk; SB, Susceptible bulk; RP, resistant parent; SP, susceptible parent.