A spruce/loblolly pine comparative map. The syntenic positions of the 161 homologous genes mapped on both spruce and loblolly pine genomes were plotted with Circos  and are indicated by colour-coded lines connecting the spruce (in colour) and the loblolly pine chromosomes (in grey). The chromosome numbers are indicated outside the circle.
Pavy et al. BMC Biology 2012 10:84 doi:10.1186/1741-7007-10-84