Frequency distribution of rust resistance, peg, and seed characteristics (A−F) in recombinant inbred lines (F6/F7 RILs) derived from a cross of A. ipaënsis K 30076 (Ai) with A. magna K 30097 (Am). For rust tests, A. hypogaea cv. Runner IAC 886 (R) was the susceptible control. With the exception of pod constriction, for all traits the means of the parents are significantly different (P < 0.05). In (A) genotypes without symptoms (therefore without incubation period), this trait was artificially tabulated as 200.