Synteny: recent advances and future prospects.

Their small sizes have meant that the Arabidopsis and rice genomes are the best-studied of all plant genomes. Although even closely related plant species can show large variations in genome size, extensive genome colinearity has been established at the genetic level and recently also at the gene level. This allows the transfer of information and resources assembled for rice and Arabidopsis to be used in the genome analysis of many other plants.