Figure 3.

Comparison of the LmR1 locus on linkage group N7 of Brassica napus with the physical maps of Arabidopsis chromosomes At1, At3, and At5. Averaged positions of markers on Arabidopsis chromosomes are given in megabases as described on the Arabidopsis Information Resource web site (http://www.Arabidopsis.org/). Only orthologous loci on the repeat unit carrying the resistance gene are connected by lines for better clarity. Dotted lines depict the inversion of marker orders between the two genomes. Hatched boxes flanked by underlined markers show the areas on At1 that were analyzed for possible candidate resistance genes.