Fig. 4. Approximate size of the PI 88788 introgression in S42-M1 and the PI 88788 derived fragments segregating on linkage group G in near isogenic line (NIL) populations SR-1, SR-2, and SR-3 developed from crossing S42-M1 and C22-C3. Map positions are according to Meksem et al. (2001) and Song et al. (2004). Approximate position of rhg1 according to Cregan et al. (1999) and Meksem et al. (2001).