Synteny between Prunus and Populus. Arabidopsis single copy genes corresponding to the bin mapped RosCOS were compared to the poplar genome. RosCOS that mapped to the same bin were selected for synteny analysis when three or more poplar orthologs were within 2 Mb from another for at least one poplar linkage group. Arrows indicate the largest syntenic blocks within 2 Mb of the poplar genome. A through H represent Prunus linkage groups 1 through 8, respectively.