Composite RFLP linkage map of Arabidopsis thaliana HM x WS and M13 x WS F2 populations. Markers designated “FQ” are anchor loci, common to both populations. Markers mapped in the HM x WS population are designated “Q”. The remaining markers were mapped in M13 x WS only. The construction of the A. thaliana composite map was as reported previously (Kowalski et al. 1994a). It should be noted that integration of data from two populations tends to inflate recombinational distance due to unequal recombination between populations. The filled circles next to the loci indicate homoeologous loci detected by the same probe on the Brassica composite map. Open circles indicate that no polymorphism was detected for homoeologous loci in RCB x GC Brassica populations. The letter “R” next to a probe name indicates that it hybridizes to a repetitive DNA sequence in the Brassica genome. Specific colors are asigned to each homoeologous chromosome. Markers included in the one-to-one model for Arabidopsis-Brassica correspondence are connected by filled columns. Open columns indicate possible duplicated regions in Brassica.
