Aligned GR contigs along Arabidopsis and Vitis chromosomes. Blue and purple bars next to the chromosomes show the GR contigs. Green lines to the left of each chromosome indicate gene-density of the target genomes. The length of the bar represents the physical distance between anchoring markers on the target genomes. Putative centromeric regions on Arabidopsis chromosomes are marked out in rectangles. Centromeric regions on Vitis chromosomes cannot be determined.