of genome coverage were observed for the two marker techniques. Therefore, similar to AFLPs, the wide genome coverage of SRAP markers and their high reproducibility results in the construction of genetic maps with optimal marker distribution. As expected, each co-dominant marker pair (each band was scored independently, Fig. 3) was located in the map at almost the same position, at distances between 2 to 10 cM. They failed to fall exactly at the same location because, being scored separately, their genetic distance theoretically matched the level of residual heterozygosity (1/25) which exists in this RI population after five rounds of selfing. The relative high frequency of co-dominant SRAP markers is another important advantage of this technique over AFLP markers.